Features:<br />1. Selected 9.4mm stereo diaphragm， produce rich immersive sound.<br />2. Built-in high clear microphone， noise cancalling， enjoy hands-free calls.<br />3. With 100mAh battery， long lasting life， support 6-7 hours working time.<br />4. Sweatproof， not easy to slip down even during intense work out.<br />5. 45? oblique in-ear angle， ergonomic design， more comfortable wearing.<br /><br />General Specification:<br />Brand: UCOMX<br />Model: U27<br />Color: Black， White， Red<br />Wearing Type: In-ear<br />Microphone: Yes<br />Wired Control: Support<br />Bluetooth Version: V4.1<br />Transmission Distance: 10m<br />Driver Unit: 9.4mm<br />Frequency Response: 20-20000Hz<br />Battery Capacity: 100mAh， 3.7V<br />Charging Time (h): 2 hours<br />Talking Time: 7 hours<br />Music Time (h): 6 hours<br />Standby Time (h): 200 hours<br /><br />Package Included:<br />1* UCOMX U27 Bluetooth Earphone<br />1* Charging Cable<br />2* Pairs of earmuff<br />1* Manual