Portable Wireless Bluetooth Speaker – Black
- Bluetooth protocol: V2.1
- Play time: 2-4 hours
- Battery capacity: 300MAH
- Frequency range: 40Hz-20KHz.
- The signal-to-noise ratio: =75dB
- Power supply: built in lithium battery
- Channel: 2.1
- Speaker number: 1
- Effective distance: 10 meters
- Display: No display
- Play format: MP3
- Shell material: plastic
- Format: support TF Card
- Speaker adjustment mode: knob
- Radio function: Yes