Monstercube Wireless Bluetooth Earphones Bluetooth Earbuds Runner Headset with Mic Wireless Headphones for Running,Black LATEST BLUETOOTH 4.1 TECHNOLOGY: fast pairing; powerful stereo sound; clear speech within 10 meters; LARGE CAPACITY OF THE BATTERY: 120mAh battery capacity, 2 hours charging time, the fully charged battery has power for up to 7 hours of talk time, up to 6 hours of music playing time, or up to 120 hours of standby time. DUAL PAIRING: 2 bluetooth devices connected at the same time, you won't miss any call with MC03. Easy to use: Voice prompt incoming call numbers, Control volume, select songs and receive phone calls via the buttons on the interfaces. 3. Comfortable Design for Sporting & Sweaftproof: ergonomic in-ear headphones design fits the contours of ears; Unique flexible design sports earphones let you enjoy music when running, gym, exercise and other activities. HD STEREO & NOISE CANCELLATION TECHNOLOGY: with excellent sound effect collection, superior sound isolation, efficiently reduces external noises, and provides steady Bluetooth signal and support stereo APT-X lossless music. WARM TIPS: this earphone doesn't support the ipod at the moment. Monstercube Bluetooth Headphones include Unconditional 60 days refund or replacement, 18 months worry-free warranty, free lifetime technical support and friendly customer service. LIFETIME WARRANTY - We will replace your Earbuds between 3 months, No questions asked.