Features: Brand new and high quality. Mini Wireless Bluetooth Sports Headset Headphone Earphone with MIC and LED Indicator Light. Bluetooth 4.1+EDR, more stable signal and more strengthen data transmission. Built-in High Sensitivity Microphone, provide clear and loud sound. Built in 50mAh rechargeable polymer battery, support up to 4 hours of continuous talk and 3 hours of music play. Smart one to two, can connect two smart phones simultaneously. Intelligent voice prompt, Announce incoming caller's number automatically. Allow you to conveniently answer calls for safe driving or exercising, etc. Compatible with almost all Bluetooth-enabled mobile devices, iPhone, iPad, Smart Phones, Tablet PC, Macbook, Laptop, Desktop, etc. Note: this mode of Bluetooth headset is only suitable for right ear. Specifications: Product: Mini Bluetooth Sports Headset Bluetooth: V4.1 + EDR Bluetooth mode: Bluetooth/headset/A2DP Battery: 50mAh Color: Black, White, Pink, Nude Dimension: appr. 2.8 x 1.6 x 1.5 cm - 1.10 x 0.63 x 0.59 inch Wearing style: In-ear AC input: 110V - 220V DC output: 5V Radio frequency: 2.402-2.480 GHz Transmission level: Class 2 Wireless range: 10m Standby time: 120 hours Talk time: 4 hours Music time: 3 hours Package Included: 1 x Mini Wireless Bluetooth Sports Headset 1 x Charging Cable 1 x User Manual NO Retail Box. Packed Safely in Bubble Bag.