"Features:
<br />&nbsp;
<br />Up to 10 hours play time
<br />Up to 10 hours talk time
<br />Up to 360 hours standby time
<br />Less than 2.5 hours changing time
<br />Unique neck-strap design for easy carrying&nbsp;
<br />Ultra light weight for all day comfort
<br />Vibration Alert on call
<br />Easy magnetic earphone storage
<br />Noise reduction &amp; Echo cancellation&nbsp;
<br />&nbsp;
<br />Specification:&nbsp;
<br />&nbsp;
<br />Changing voltage: MICRO USB 5V
<br />Working current: 25-30 mA
<br />Output power: 2x20mW &nbsp;
<br />Blue tooth working range: 10M
<br />Frequency&nbsp; range: 2.401-2.480GHz
<br />Frequency response:20HZ-20KHZ&nbsp;
<br />SNR : S/N?95 &nbsp;
<br />Distortion factor: ? 1% &nbsp;
<br />Bluetooth Version: 2.1+EDR&nbsp;
<br />Weight: 32g&nbsp;
<br />Dimensions: 167.3mm(L) x 135.6mm(W)x 16.9mm(T) &nbsp;
<br />&nbsp;
<br />Compatible Model:
<br />Compatible with Bluetooth 1.1/1.2/2.0/2.1 and above, devices providing the providing the Bluetooth Headset(HSP)
<br />and Handsfree(HFP) Profiles. Enjoy wireless freedom and use this device with Bluetooth phone.&nbsp;Include : Smartphone/Pad/MP3 MP4 IPOD
<br />
<br />Package Includes :
<br />1 X&nbsp;Wireless Bluetooth HandFree Sport Stereo Headset headphone (no retail box) 
<br />1 X Micro USB Cable 
<br />10:59:51
<br />     2017/9/20 10:59:51
<br />In ear design gives you comfortable wearing experience
<br /> 
<br />
<br />tStrong signal Bluetooth earphones provides more stable and clear music playing and calls answering ability
<br /> 
<br />
<br />tFashion controller on the cable can pause and start the music play and answer calls, and can also control the volume by press  +   -  button, more convenient