Feature:
1 . Ergonomic wireless earbud design, comfortable to wear.The wireless headphones is sweatproof, no worries about that the headphones will be damaged by sweat when you doing sports exercise, such as running, jogging and outdoor game playing and ect.
2 . The auto retractable earbuds allow you to retract the headphone's wire to the length you want and press the retract button can store the earbuds automatically when no use.
3 . With 80mAh Li-battery. keep 4 hours music play time or 5 hours talk time, almost whole days. the wireless bluetooth headset keep remind you when in low battery.
4 . Connect two phones simultaneously, under pairing one phone status to link to another phone.

Detail :
Size : 47*26*25.8mm/1.85*1.02*1.02inch
Talk time : About 5 Hours
Music time : About 4.5 Hours
Standby time : About120H
Charging time : 1H-2H
Battery Capacity : 80 mAh
Transmission distance : 10mMicrophone : Built-in
Voice Language : English defaulted, support Chinese, English.
Bluetooth version : V4.0 + EDR compatible
Chip : British CSR8615 chip
Wireless frequency : 2.4GHz-2.48GHz
Transmission power : Class 2
Working voltage : 3.2 ~ 4.2V
Working curren t : <25mA
The microphone sensitivity :  [to 45 db (0 db = 1 v/Pa, 1 KHZ)]

Include:
1 x Bluetooth headset (Without Original Package)
1 x USB charging cable
1 x User manual