Metal  Material 

Chipset:JL+ADI

Speaker:Φ40mm Dynamic type 

Wireless distance range:10M

Bluetooth version:5.0

* Bluetooth profile:A2DP/AVRCP/HSP/HFP 

* Battery capacity:3.7V/200 mAh（seiko protection board）

* Working time : 5~6 hours

* Charging time:about 2 hours

* Operation range:10m

* Material：PU+ABS

* Speakers:40mm (32ohms)

* MIC:3pcs (-42db±2db)

* Noise-cancellation:20db

* Frequency response:20Hz-20KHz

* SNR:>85db

* Charging input:5V /1A,Micro USB

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