**Bluetooth version
3.0
**Bluetooth profiles
**HSP, HFP, A2DP and AVRCP
**Bluetooth operating distance
10 meters (equal to 33 feet)
**Frequency range
2.4-2.48GHz
**Speaker output power
3w
**Frequency response
100Hz-20kHz
**Distortion
≤1%
**Microphone sensitivity
-40db
**Playback time
Music time: 10 hours; talk time: 15 hours
Built-in lithium battery
4400mAh
Power bank output
5v/1A
Charging port
Micro USB
Charging time
Approx 3-4 hours
Unit size
130x63x36mm
Unit weight
Approx. 295g