Power: 50W, 4ohm, 25W, 8ohm.
Efficiency: 81%＠50W，4ohm 88%＠25W，8ohm. 
Dynamic range: 100dB.
Color: black.
Material: aluminum.
Casing process: pull lines. 
Oxidation (won't rub off like spray paint). 
Screen printing technology: radium vulture (won't rub off like spray paint).
Signal input: RCA signal input.
Signal output: 4-line signal output.
Power supply：DC 12-25V, 50W above, external diameter is 5.5mm negative.
Inner diameter is 2.1mm positive. 
Circuit board: 1.6mm thickness.
Full glass fiber.
GeneralModelFX502AMaterialAluminum alloyQuantity1 pieceSpecificationTotal Power50 X 2WSNR78dBTHD0.1%Frequency Response20~20K(Hz)Impedance8ohmChannels2.0Interface2-RCARadioRadio TunerNoPowerPower Supply100-240V 1.8APower AdapterUS Plug
Packing List:
1 x Power amplifier1 x Power adapter (112cm)1 x US-Plug cable (152cm)Package Weight:0.86kg (1.896lb)
Package Size:14.7cm x 9.6cm x 3.8cm (5.51in x 3.54in x 1.18in)

Description: 1. The power supply can be accessed from a DC outlet or a terminal block. 2. Audio can be from 3.5mm socket, or 3P socket audio input interface, such as: computer, MP3 player, etc. 3. Bass volume potentiometer, which can independently adjust the bass output volume. 4. Left and right channel volume potentiometer, can adjust the left and right channel output volume at the same time. 5. Treble adjustment potentiometer, adjustable left and right channel treble gain output. 6. Switch / total volume potentiometer, with switch can turn off the amplifier / can also adjust the bass and left and right channel output volume. 7. Total potentiometer with default switch Note: The 3P input jack 'Lin' -- is the source left channel input, and the 'G' -- is the source common ground 'Rin' -- is the source right channel input. Parameters: Audio input sensitivity: 600-800mV Frequency response range: 20Hz-20KHz Speaker impedance: left and right channels: 4-8 ohms, bass channel: 2-8 ohms Dimensions: 101 (W) x 100 (D) x (H)

Features: TDA7492P digital amplifier chip, designed to optimize the circuit layout, the sound quality is very good, big power. DIP switches can be more easily directly adjusted after-class amplifier gain,to better promote the impedance larger speakers. If you directly use Bluetooth, when power, wait 3s~10s, until led Blue and Red light flashing alternately, then you can use your device to find my Bluetooth module, you will find 'SANWU Audio' then connect it, can directly use it. Remember back to even. Specifications: Material: PCB Color: Red Digital amplifier board: 8x5x1.6cm Case size: 10.2x7x2.2(L*W*H) Power: 2.1 interface 8~25V DC power supply Best fit speaker: 50W + 50W Audio input: stereo input various versions of the bluetooth connection, using CSR8630 bluetooth chip, bluetooth V4.0, high software compatibility Output impedance: 8 ohms best(4,6,8,16 ohm impedance can drive speakers) Output power: powered 25V ,6-ohm impedance output 2 X 50W, 8 ohm impedance output 2X40W dual-channel Package included: 1 x TDA7492P Digital Amplifier Board 1 x Acryliccaseor Case 1 x 2.1mm x 5.5mm Male Connector Note: - Please allow 1-2mm differs due to manual measurement. - Due to the different display and different light, the picture may not reflect the actual color of the item. Thank for your understanding.

Note: The power amplifier board should be connected to the speaker first, and then the power supply can be turned on. The no-load power supply will cause the output stage to burn out. Specifications: Input voltage: AC24V4V Input current:>5A & 300VA Input impedance: 1k Input signal: 1.8V Channel: Two-channel Magnification: 33 times Output power: 420W * 2 Output impedance: 4-8 Type: AD class Size: 133*105*28MM Product weight: 495g Feature: - This power amplifier board adopts the new original imported TDA8954TH chip, which is produced by NXP. The chip is in the working state of AD class, which has the round sound quality of analog power amplifier and the high efficiency of digital power amplifier. - Designed for each channel with independent BTL mode output, power up to 420W, and the use of industrial graphics card-level fan heatsink, long-term operation can also effectively control the temperature within a reasonable range. Used to push 8 inch 12 inch speakers. 4 ohms can reach 420W per channel, 8 ohms can reach 210W per sound. Can be used as a pure final stage or as an independent amplifier is a good choice. Package Included: 1 x 420*2 TDA8954TH Digital Audio Amplifier Board

Specification: Operating voltage: DC 12 - 24V (recommended 19V 4.74A) Output impedance: Subwoofer 2 - 8 left and right channels 4 - 8 Output power: Subwoofer 100W (24V power supply / 3 load) Left and right channel 50W (24V power supply / 4 load) Input impedance: 20K Signal input: 800-1500mV P-P Frequency response: 20Hz-20KHz ( 3dB) / left and right channels 20-180Hz / subwoofer Distortion: bass

Feature: Audio input: wireless bluetooth receive, USB decoding, TF card decoding, audio input seat Support playing format: MP3, WMA, WAV, FLAC Amplifier chip: stereo channels TPA3116 (50W + 50W) bass TPA3116 (BTL 100W) Output power: 50W + 50W + 100W (bass) Operating voltage: 12 ~ 26V DC Recommended power supply: 24V DC, >5A (staccato situation occurs at high volume large dynamic status when power supply current is not enough) can use 24V 3A power supply when speaker power is not so large Speaker Impedance: 4ohms, 6ohms, 8 ohms Package included: 1 x Wireless Bluetooth Digital 2.1 Channel Amplifier Board

Ultra Power UP100AC DUO 100W LiPo/LiFe/NiMH Battery Balance Charger Discharger Description: The UP100AC DUO charger is a twin AC/DC charger with 100W and 50W power for channel 1 and channel 2. It features intelligent power control function: 1. The output power base on the principle of channel 1 + channel 2 = 100Watt. 2. If only one channel is used, the output power come from channel 1 can approach to MAX. 100 watt, channel 2 can approach to MAX. 50 watt. 3. If both channels are used, the output power of channel 1 equals 100 watt minus output power of channel 2. 4. Start channel 2 while channel 1 is using fully 100 watt,the output power of channel 1 will be reduced accordingly. Each channel is capable of charging all types batteries. Specifications: Item brand: Ultra Power Item num: UP100AC DUO Input voltage: AC 100-240V / DC 11.0-18.0V Charging power: Max. 100W(CH1); Max. 50W(CH2) Discharge power: Max. 10W(CH1); Max. 5W(CH2) Charging current: 0.1-10A(CH1); 0.1-6A(CH2) Discharge current: 0.1-5A(CH1); 0.1-2A(CH2) LiIo/LiPo/LiFe: 1-6 series NiCd/NiMH: 1-15 cells Pb Battery: 2V-20V (1-10cells) Balance current: 300mA/cell Battery data memory: 10 profiles Weight: 714g / 1.6 lb Size: 143 * 115 * 63mm / 5.6 * 4.5 * 2.5in Features: Optimized operating software. Balancing individual cells for battery discharging. Adaptable to various type of lithium battery. Three USB ports, 5V/2.1A for iPad, mobile phone, digital cameras, etc. Fast and storage mode of lithium battery. Cyclic charging/discharging. Re-peak mode of NiMH/NiCD battery. Data store/load. Terminal voltage control(TVC). LiPo battery meter. Maximum safety. Automatic charging current limit. Capacity limit. Temperature Threshold (temperature probe is not included). Processing time limit. Package Informations: Package size: 24 * 13 * 8cm / 9.4 * 5.1 * 3.1in Package weight: 1064g / 2.3lb English Manual please Click Here Package Included: 1x UP100AC DUO 100W balance charger 1x Power supply cable 4x Charge connect cable (as the picture shows) 1x User Manual

Parameter: Voltage: DC 8V-20V, support four 18650 power supply Power: 2 X 50W Gain: 2 X 100W Speaker impedance: 4 ohms, 6 ohms, 8 ohms TDA7492 amplifier module function: The TDA7492 is the first amplifier on the market with a power rating of 50W+50W and features an advanced sixth-generation BCD6S process that supports monolithic OTO integration of analog, logic and high-voltage functions (bipolar/CMO/S/DMOS). Compared to other Class D amplifiers, the high chip area energy efficiency ratio also reduces crosstalk and improves sound quality. In addition, the BCD69 allows the integration of NMOS and PMOS complementary transistors in the high power output circuit, eliminating the need for external bootstrap and cathode load diodes required by older processes. This method system simplifies design, saves board space, improves product design reliability, and optimizes material costs. Package included: 1 X TDA7492 digital HIFI power amplifier board with shell

EV-Peak E4 50W 4A AC Fast Balance Charger for 2S-4S LiPo Battery The E4 is a compact travel sized, intelligent battery charger with simple features. The charger can charge up to 50W (4A) via the AC power cable provided. It also has LED charge level indicators, making charge cycles a breeze. Charge LiPo, 2-4s with this simple and compact charger. It charges through the XH balance plug of a LiPo battery. Description: Brand Name: EV-PEAK Model Number: E4 AC Input voltage 100V-240V Charge power 50W Charge current 4.0A Balance current 300mA LiPo battery cell count 2-4 Series Indication 4x LED Capacity Indication Charge mode balance charge Dimension 98*98*36mm Weight 278g Introduction: E4 is a hot selling and high quality AC 100-240V balance charger, only for Lipo battery(2-4S). Charge power is 50W and max charge current can reach up to 4A. Features: 1.Simple,easy 2.Built-in AC power supply 3.Charge in balance mode 4.4 LEDs indicate the battery capacity percentage Specification AC Input voltage 100V-240V Charge power 50W Charge current 4.0A Balance current 300mA LiPo battery cell count 2-4 Series Indication 4x LED Capacity Indication Charge mode balance charge Dimension 98*98*36mm Weight 278g Package Includes: 1 x EV-Peak E4 50W 4A AC Fast Balance Charger 1 x AC power cord

Features: Using classical 6J1 tube, design process, optimization of the line, and ultimately make it very resistant to bile taste, warm voice and sound field open, high bass adjustment function is unique Can be connected to the computer. Mobile phone.CD. lossless music player source, the output end can be connected to a variety of digital amplifier, active multimedia speakers and other audio equipment, audio equipment allows you to instantly bile flavor With high bass adjustment function, according to the different audio equipment parameters, free adjustment, to achieve the desired effect of HiFi sound quality Voltage: 12V Current: 1A Material: Aluminum alloy shell, gold-plated interface Size: 125mm x 98mm x 33mm Power amplifier type: HIFI power amplifier The correct boot sequence is: Open the gallbladder front stage first, and then open the power amplifier connected to the front of the bile duct. Please note: This machine is a bile level, not a power amplifier, does not have the power amplifier function. Need to connect the power amplifier or active multimedia speakers before the bile level The tube is fragile, the installation of electronic tube, please try to slow vertical tube plug, avoid tube holes around the aluminum shell, prevent tube cracks or leaks Package Included: 1 x Ding Shine Audio Vacuum Tube Preamplifier

0.1-2000MHz RF Wideband Amplifier 30dB Gain Low Noise Amplifier LNA Module Description: Item Name: RF Wideband Amplifier Module Operating frequency: 0.1-2000MHz Maximum Power Output: +10dBm (10mW) @1dB Compression point Power Supply Voltage: 6-12V DC Noise Figure: 1.9dB System Impedance: 50 Diameter of End: 5mm Size: 25*52mm Amplifier Gain: F=0.1MHz, gain=32dB F=500Mhz, gain=31dB F=1000MHz, gain=29dB F=1500Mhz, gain=25dB F=2000MHz, gain=20dB Note: - When working frequency is less than 500 MHZ, it get well gain flatness, can make it less than 1dB after careful adjustment. The lower frequency the higher gain consistency. - Amplifier working frequency of the lower limit is subject to input and output capacitor, the default value is 0.1 uF, working to 0.1 MHz. Increase the input and output capacitance appropriately,can extend the cut-off frequency, such as 10uF capacitance can work to 5KHz. - When the power supply voltage changes in 5-8 v, it can be used as a variable gain amplifier, gain increases with the increase of the power supply voltage, which suitable for radio frequency receive front-end circuit, using DA control power supply voltage, to control the gain of the amplifier, automatic gain control. - When the power supply voltage in the 8-10 v, the low frequency end gain up to 30 db, at this time the amplifier has a low noise coefficient and good stability. Package Included: 1x 0.1-2000MHz RF Wideband Amplifier 30dB Gain Low Noise Amplifier LNA Module

tem type: COB Led Grow Light
Application: Garden,Greenhouse
Light Source: Epistar COB
Operating voltage: 110V/220V
Power: 30W/50W/70W
 Main wavelength/color temperature: 380-840 (nm/k)
Color rendering index: 80-90Ra
Luminous angle: 120degrees
Lifespan: Up to 50000H
Shell material: Aluminum
Set include: 1 * COB Led Grow Light
GeneralMaterialAluminiumQuantity1 pieceSpecificationPower70WRated VoltageAC 220VEmitter TypeCOBTotal Emitters1Color BINFull spectrumActual Lumens1200 lumensColor Temperature7500KDimmableNoBeam Angle120°Packing List1 x COB Led Grow Light
Package Weight:0.063kg (0.139lb)
Package Size:16.2cm x 4.7cm x 0.4cm (6.30in x 1.57in x 0.00in)

GeneralModelWY8106Quantity1 pieceMaterialABSSpecificationLight ColorWhite lightLED Qty3LED TypeCOBLight Mode5Powered ByUSBLumens500 lumensSnake Cable Length5cmPower5W
Packing List:
1 x Working LampPackage Weight:0.191kg (0.421lb)
Package Size:16cm x 5cm x 5cm (6.30in x 1.97in x 1.97in)

Bain treasure 7770 Cute Dog Pattern Feeding Bottle Warmer - Black + Yellow

Main Features:
1. High quality protector, provides you amazing touch feeling
2. Ultra-thin design, high transparency, high sensitivity
3. Provides your tablet screen comprehensive protection
GeneralModelN/AQuantity1 pieceForm ColorTransparentMaterialPETSpecificationCompatible Size10.1 inchFunctionWater ResistantPackage Weight:0.073kg (0.161lb)
Package Size:28cm x 20.5cm x 0.1cm (11.02in x 7.87in x 0.00in)

GeneralQuantity10 piecesForm ColorMulticoloredMaterialCopper wireSpecificationEnglish Manual / SpecNoOther FeaturesCertificationN/APacking List10 x Cables
Package Weight:0.08400000000000001kg (0.185lb)
Package Size:50cm x 1cm x 0.9cm (19.69in x 0.39in x 0.00in)

TPU + PC Case w Holder Stand for Xiaomi Redmi S2

Great addition to your hobby craft tool kit
Diamond coating is on both sides of the disc
Ideal For Cutting: Gem stones, metal, glass, carbide and other hard material
Product Description
Disc Diameter: Approx. 16 mm
Disc Thickness: Approx. 0.5mm
Center Hole Diameter: Approx. 3 mm
Shank Diameter: Approx. 3.1 mm
Material: Carbon steel
16mm cutting discs with diamond coating on both sides.
Come with 3.1mm diameter mandrel, these cutting discs will fit most rotary tools.
These cutting discs are perfect for all sorts of jobs like model making and the like.
Package includes:
10 x Cutting Disc
2 x Mandrel
 

GeneralBrandZHAOYAOModel1Quantity1 setMaterialCarbon steelSpecificationDiameter-cmPacking List12PCS
Package Weight:0.016kg (0.035lb)
Package Size:10cm x 5cm x 1cm (3.94in x 1.97in x 0.39in)

The following models of 11 species, one each of 10, a total of 110;

Each model separately installed, the total re-packed in a bag easy to use and fast.

S8050, S8550, S9012, S9013, S9014, S9015, S9018, 2N5551, 2N5401, A1015, C1815

GeneralBrandBONATECHQuantity110 piecesForm ColorBlackMaterialPlastic + ironSpecificationEnglish Manual / SpecNoOther FeaturesCertificationNOPacking List110 x Transistor
Package Weight:0.028kg (0.062lb)
Package Size:9cm x 6cm x 2cm (3.54in x 2.36in x 0.79in)

Wifi IP Mini Camera Wireless Infrared Body Camera Night Vision Motion Detection Mini DV Voice Video Recorder 1080P HD Camera

LVZUAN LN02 Mobile "11200mAh" Power Bank w/ Dual-USB / LED Flashlight - Black