ANC Bluetooth headphone BH-2002A

* Type: ANC Bluetooth headphones

* Bluetooth protocol: 4.0

* Channel: Stereo

* Range: 10m

* Battery capacity: 400mA

* Stereo audio: A2DP

* Battery Type: Rechargeable lithium battery

* Bluetooth protocol: Support a2dp/avctp/hfp/spp/smp/att/gap/gatt/rfcomm/sdp/l2cap

* Call time: 16-18 hours

* Standby time: 180hours

* Frequency: 2.402-2.480GHZ

* RF performance: reception sensitivity: -90dBm,the maximum transmit power 4dBm

* Sound frequency: 20Hz-20KHz,95Db total harmonic distortion(THD)0.1%

* Power LED: blue light, red light

* Charging port: USB lnterafce 

* External sources: support 3.5&2.5 mm line in input

* Normal charging time: 3 hours

* Operating temperature: -10℃~50℃

* Storage temperature: -20℃~80℃

* Color:Black,Iron gray ,Rose Gold ,Red

* Size:190*170*53mm

* Weight: 215G