Haing Wireless Headphone with Microphone BLACK/KHAKI/BLUE/PURPLE

[Description]:
Key Features

Wireless Connectivity • Double Stitched Swivel Ear Cups • Push to Talk Assistant • Adjustable Headband & Foldable Arms
Hands-Free Microphone
Dricer size:40mm
Dynamic frequency response range:20Hz
Sensitivity:96dB
Maximum SPL:11dB
Microphone sensitivity @1kHz dB v/pa:-42
Wireless transmitted power:0-4dbm
Wireless transmitted modulation:GFSK,Π/4DQPSK,8DPSK
Wireless frequency:2.402GHz-2.48GHz
Wireless profiles:HFP v1.6,HSPv1.2,A2DP v1.2,AVRCP v1.4
Impedance:32ohm
Wireless version:V5.3
Battery type:Polymer Li-ion Battery(250mAh)
Charging time:2 hours
Music play time with BT on:Up to 6 hours