Super light weight Bluetooth stereo headphone with microphone

Advanced Bluetooth V 3.0 + EDR Technology

Supporting HSP/HFP/A2DP/AVRCP profiles

Frequency: 2.4GHz ISM band

Speaker Impendance: 32 ohm

Outout SPL: 93dB

Microphone Sensitivity: -54dB

Microphone Impedance: 2.2K ohm

Buttons: Volume up/down, previous/next song control

Built-in 320mA rechargeable battery

Charged by micro USB port

Music Playing time up to 11 hours

Standby mode up to 250 hours