1、Bluetooth 5.0 Main Control Chip: Using Bluetooth 5.0 main control chip, possess good transmission effect and high stability 2、For Daily Use And DIY Modification: With button control, which can control prev or next song, volume add and reduce, playback, pause, turn on or off, etc., and reserved high and low level control interfaces, regardless of daily use and DIY modification, very playable 3、Micro 5p Interface Power Supply: Micro 5p interface power supply, ordinary mobile phone charger charging cable can be used 4、Transmit Bluetooth Audio Signals: The Bluetooth audio signals of mobile phones, laptops, and tablets can be transmitted to power amplifiers, active speakers and other devices through this Bluetooth audio receiver 5、Turn Normal Headset Into Bluetooth Headset: The audio interface can also be connected to a normal headset with a 3.5mm interface, which can turn a normal headset into a Bluetooth headset(without a microphone, voice chat is not supported) Item Type: Bluetooth Audio Receiver Module Material: FR4 fiberboard Color: Black, white Power Interface: Micro 5p (reserved 2.5mm welding port, this model does not support battery power supply) Signal to Noise Ratio: 90DB THD+N: -70DB Crosstalk: -86db DNR: 91db Transmission Protocol: A2DP, AVCTP, AVDTP, HFP Transmission Distance: Approx. 10meter / 32.8ft(the shorter the distance, the better the stability) Output Interface: 3.5mm Stereo (reserved welding points, you can DIY by yourself) 2 x Bluetooth Audio Receiver Module