گیرنده و فرستنده صوتی بلوتوث

Power supply: 3.7v battery or 5v mirco usb
Working current: 30MA
Bluetooth version: 4.2
Support 1: 3.5mm audio input stereo transmitter
2: tf card mp3 transmitter
3: Bluetooth receiver
Bluetooth receiver or transmitter distance approx. 12 m
Bluetooth receiver mode: Insert jumper cap
Bluetooth transmitter mode: pull out the jumper cap
Size: 43 * 19mm
This board button can receiver mode when + or volume