WangDaTao YD-BT001 DIY Wireless bluetooth Audio Electronic Kit Radio Amplifier Audio Production Kit With 4.2V Power Adap

Features 1 5V power supply powered by mobile phone chargers computer UB ports etc or directly powered by 4 2V lithium batteries which can be directly charged 2 Dual 3 watt stereo power amplifier output BTL output can not be connected to other power amplifiers without a common ground wire 3 Multi function Bluetooth receive hands free calls forward and fast rewind card MP3 playback AU function radio function comes with Bluetooth audio receiving module after the mobile phone and Bluetooth module are paired and connected the mobile phone can play MP3 or lossless APE files through Bluetooth and send to this The product s Bluetooth receiver module plays which greatly facilitates the function and entertainment of the product It also supports Bluetooth call function which can realize hands free mobile phone call which has higher use value This product can also play MP3 files in U disk or SD card as well as radio playback just like ordinary MP3 decoder boards 4 Lithium battery model BL 5C polymer 3 7v lithium battery lithium battery not included when charging the lithium battery of this machine a 4 2v dedicated charger must be used otherwise the battery will be damaged 5 Manual Click here Package included 1 x YD BT001 DIY Wireless bluetooth Audio Electronic Kit with shell1 x 4 2V Adapter as picture