Specification
Speaker Diameter 1.57"" / 4cm
Sensitivity 105dB S.P.L at 1KHz
Frequency Response 20Hz-20,000Hz
Rated Power 25mW
Transmission Power Class 2
Radio Frequency 2.4-2 .48GHz
Charging Time 3 Hours
Talking Time 10 Hours
Music Playing Time Up to 7 Hours
USB Cable Length 23.62"" / 60cm
Weight 1.48oz / 42g

Package Includes
1 x Bluetooth Sports Headset
1 x USB Cable
1 x User Manual

Buy it. You will love it. You'll enjoy all-day wearing comfort, clearer voice transmission and superior sound quality - without wires!

• Three-dimensional buttons design for convenient and quick use.
• This Mini503 Wireless Stereo V4.1 Bluetooth Back-mounted Sporty Headphone is a must-have for your sport, such as jogging, skating, mountaineering, etc.
• Adopting imported and superb CSR Bluetooth smart chip, this headphone ensures stable Bluetooth receiving.
• Talking Time 10 Hours and Music Playing Time Up to 7 Hours.

Three-dimensional buttons design for convenient and quick use.bee star