Comply with bluetooth 1.2 stardand (bluetooth)
Support handset and handsfree profile
Transmitted power: Class2
Wireless connection range:10M
Operation frequency range:2.402GHZ-2.480GHZ
Sound output mode: monophony
Talking time:4hours,readiness time:120Hours
Digital formats supported: MP3/WMA(mp3 player)
Signal-to-noise ratio:87.2dB
External hard drive function: Yes
Audio Additional features:Auto-power off
Earphones type: Binaural
Mfr estimated battery