Wireless radio transmitter and receiver universalr
Bluetooth version ：
Support Agreement ：
Working frequency band
Receive sensitivity ：
"- 95dBm <0.1% BER
Built-in battery ：
1. Q: Does it Support AUX OUT ?
A: yes , it does .
2. Q: What is the capacity of your battery ?
A: 300MAH .
3. Q: How long does it can stand after a full time charging ?
A: About 720 minutes .
4. Q: What color do you have for this models ?
A: We only have Black for now , if you want , we can customize it for you .