Celebrat A39 New Wireless Headphones, HIFI Sound Quality, Long Battery Life, (available Colors black & Gray)

* Wireless chip: JL AC7006

* Wireless version: V5.4

* Speaker drive unit: 40 mm

* Transmission Distance: ≥10m

* Working Frequency:2.402GHz-2.480GHz

* Impedance:32Ω±15%

* Music Time: 40H

* Call Time: 35H

* Standby time: 65H

* Charging Time: about 2H

* Battery capacity: 400mAh