M1 Bluetooth Audio Transmitter Receiver Adapter Portable Audio Player

1. Power supply mode: 5V USB or 5V power supply
2. Bluetooth: V2.1, RDA technical specifications
3. Frequency band: 44.1KHZ and audio interface
4. Output mode: 3.5mm audio interface
5. Receiving distance: 5-10m without obstacles
6. Support A2DP Bluetooth stereo