Features: 1. Mini and ultra-light in-ear design ensures stability and comfort. Sealed shell can easily repel sweat and rain, great for workout, running, hiking, biking, gym, yoga, traveling, etc. 2. Small and stylish design makes the charging case slide effortlessly into any pocket or bag. 3. Amazing listening experience with powerful bass and exceptional detail. Get unsurpassed sound quality and call clarity. 4. Pick up 2 headsets from charging case, they will connect each other automatically, then only one step easily enter mobile phone Bluetooth setting to pair the earbuds. 5. Touch either earbud to answer the call and switch between the upper and lower songs. Notice: *Actual color may be slightly different from the image due to different monitor and light effect *Please allow 1-3cm deviation due to manual measurement Description: Size: 9.5*3.5*12CM Battery capacity: 250mAh for charging case/30mAh for headphones Battery voltage: 3.7V Transmission distance: 10M Input voltage: 3.7/500MAH Frequency: 2402MHz-2480MHz Charging current: 60MA Speaker: F10 Weight for a set: 80g Includes: 1 set x wireless headphones