2. Output power: 40mW;Battery capacity 35MAH ,
charging box is 300mh .
3.Bluetooth distance: 10 meters
4.Frequency response: 20-20000Hz
5.Operating voltage range: 3.0V-4.2V
6.Powerful noise de-noising circuit (active noise reduction)
7.Charging time about 1-2 hours .
8. Talk time is about 2-3 hours (a pair of earphones used together).
9.Charging box can charge for the earphones about 3-5 times.
10.Products include: 1 * One pair of Bluetooth headsets 1 * charging box 1 * charging cable 1