Bluetooth headset earphone for mobile phone

It can connect with two devices with bluetooth function simultaneously;
With receive/hang up/reject a call, voice dialing, tail number redial functions, connect two cellphones at the same time.
Use advanced digital signal processing(DSP) technology.
High quality.
Excellent Sound Quality.
Well design and easy to use.
Stable neckband means versatility for use conditions.
Seamless switching between music and calls.
Great sound with control.
The headset supports Bluetooth V3.0 + EDR with handsfree, Headset, A2DP (Stereo Music) and AVRCP (Audio Video Remote Control) profiles.
Frequency Response is 22-18000 Hz and Total Harmonic Distortion is less than 0.5%.
Music & Talk time up to 5 hours, Standby time up to 110 hours.
Fast charging: Less than 3 hours.
Operating distance: 10m.
Range of frequency: 2.4 to 2.4835GHz ISM band.
Compatible with: Various Bluetooth enabled devices, for example mobile phone, PDA, laptops, MP3/4/5 etc.
2)Technical paramters of this bluetooth headset
*Version: Bluetooth V3.0+EDR
*Talking time: 3-4H
*Standby time: ≥ 100H
*Effective distance: 10M
*Charging time: 2-3H
*DC: 5V
*Machine size: 14.5*8*31 mm
*Machine weight: 5.2g
*Packing size: 102*131*47 mm
*Complete set weight: 76.6g
Original imported ISSC chip (long-term warranty)