Mini portable speaker Bluetooth wireless
- Bluetooth version: V4.0
- 2.0 USB charging input voltage: 5V
- Battery capacity: 400mAh
- Endurance capacity: about 6-12 hours
- Stereo Speaker Rated Power: 3W
- Charging voltage: 5VDC
- Lithium battery specifications: 3.7VFM radio function:noTF card: support (not included)
- Signal to noise ratio: 90HZ-20K / 65dB
- Bluetooth use band: 2.4000GHZ – 2.4835GHZ
- Wireless transmission distance: about 10 meters/32.81ft