Sunvito HBS-740 Wireless Bluetooth Music Stereo Universal Headset Headphone Vibration Neckband Style for iPhone 4S,5S,5C iPad 1,2,3,4,Ipad Mini, Samsung S3,S4,S5 (Black-red)

Specifications:
-Length of data cable: 77cm
-Features: Microphone, Playback Controls, Calling Functions, Volume Control
-Bluetooth Version: 4.0
-Talk time: UP to 8 hours
-Music time: UP to 8 hours
-Standby time: UP to 10 Days
Battery： 3.7V，200mAh Li-battery
-Charging time: Less than 2 hours
-Operating voltage: 1.8V/3.3V
-Charging voltage: Micro USB 5V
-Working current: 25-30mA
-Frequency range: 2.401-2.480GHz
-Distortion factor: ≤1%
-Frequency response: 20Hz-20KHz

Package includes:
1 x HBS-740 wireless bluetooth headset
1 x Charging cable
1 x User manual