Features:
- BT version:CSR 4.0
- Output: 5W*2
- Driver Size: Φ52mm*2
- FrequencyResponse: 50Hz-20KHz S/N:70db
- With Bass-Enhance function
- Built-in 4400mA battery
- Play time:8-10H
- Built-in microphone/AUX
- Charge port:Micro USB
- Power supply:3.7V
