ITEM NAME:PAM8403 5W+5W Digital Bluetooth Stereo Audio Power Amplifier Board 2 Ch HTS Descriptio n Description: Transmission Distance: Up To 20 Meters (no Blocking) Supply Voltage: 5V (micro Input) Number Of Channels: 2 Maximum Power: 5W+5W Specifications: Material: PCB Color: Picture Color Size: 9.9*6.4*2.4cm (without Protruding Parts) Product Model: HW-433 Package Included: 1 * PAM8403 Digital Bluetooth Power Amplifier Board Note: Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! PAM8403 5W+5W Digital Bluetooth Stereo Audio Power Amplifier Board 2 Channel 5V.1 PAM8403 Digital Bluetooth Power Amplifier Board. Maximum Power: 5W+5W. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. We'd like to settle any problem in a friendly manner.