Product Features:

Driver Unit: ø40mm x 2 Impedance: 32Ω 

Sensitvity:118±3dB S.P.L at 1KHz

Response (system): 20Hz~20KHz

Rated Power: 20mW

Power Supply: Lithium battery/DC 5V 

Built‐in 400mAh rechargeable battery Plug Type: Micro USB

Unique Selling Point:

Bluetooth Version:V4.0

Support: HSP, HFP, A2DP, AVRCP profiles

BT Transmission distance: 10‐15m

Built‐in microphone for calling function

Soft headband & ear pad to bring comfortable wearing

Unique & fashionable design Clear & powerful sound Support AUX IN function