Ecandy Bluetooth 4.0 Earphone with Microphone  (Black) Incorporating the Ergonomics /Chewing Sweet design and in-ear design,this headset is extremely comfortable and secure for the most users: bicyclist, runners, joggers, walkers etc. With its fashinable appearance and built-in CSR8645 prefessional music bluetooth chip with HIFI Stereo earphones, you can always enjoy HD quality/Double ears piece 3D stereo sound.Double-microphone noise cancellation. The built-in Mic with voice prompts and voice message can answer incoming calls. Built-in rechargeable lithium battery,up to 6-Hr Music time ,6.5-Hr Handfree call talking time and 2-Hr Charge time & 240 Hr Standby time. Bluetooth v 4.1 + EDR ,Rainproof sport design ,supports Headset Profile / HandsFree Profile/A2DP Profile/AVRCP Profile.10 meter Bluetooth connection range. with Clear Voice Portable Wireless Stereo Outdoor Sports/Running &Gym/Hiking/Exercise Bluetooth Earbuds Headphones Headsets w/Microphone.It can connect two cellphones simultaneously. Compatible with : iPhone 6 5S 5C 5 4S 4, iPods,HTC One,One mini, One mini 2,iPad Mini, Samsung Galaxy S6, S5 S4, S3, S2,Note 3, Note 2,LG Optimus,LG G3,G2,MOTO X,Most Android Smart Phones and Tablets and other Bluetooth-enabled Devices