1. Material: shell plastic.
2. Bluetooth protocol: A2DP HSP HFP
3. Interface: USB2.0
4. Power output: 0~+4DBM
5. Reception sensitivity: -75dB
6. Transmission distance: 10 meters.
7. Frequency Band: 2.4G ISM Band
8. Connection method: Piconet/Scatternet support
9. Audio decoding: 16-bit CODEC
10. Working voltage: 5V
11. Packing list: Receiver X1 Wheat X1