The headphone features the 9D stereo surround sound dynamic diaphragm, unique cavity, 40mm/1.57in(about) large moving coil.
The headphone supports about 20 hours of continuous listening songs, about 150 continuous songs, and about 3 hours of charging time.
Two modes can be switched freely, including Bluetooth-compatible connection and wired connection.
The headphone features the upgrade Bluetooth-compatible 5.0 chip for faster connection! And it is stable in use, which features the wider transmission range.
The headphone features the ear-wrap design, no pressure on ears, high elastic protein leather material, soft texture, good breathability, which is comfortable and painless to wear, and it is foldable for storage.
bluetooth-compatible Version: V5.0
bluetooth-compatible Scheme: BK3266
bluetooth-compatible Distance: ≦10m
Decoding Format: SBC,MP3
IOS supports AAC decoding format
Support Protocol: HSP,HFP,AVRCP
Battery: 3.7V 500mAh
Charging Time: 2-3h
Playback Time: 20h
Call Time: 22h
Charging: MicroUSB DC5V-1A
Product Size: 165mm×180 mm
Net Weight: 191.5g±3g
Audio Cable Length: 80±5cm
Sound Unit: φ40mm
Frequency Range: 20-20KHz
Maximum Output Power: 60mW
1 x AA-ER2 Headphone
1 x Charging Cable
1 x Audio Cable
1 x English User Manual