Features: It is equipped with a mic for each earbud with environmental noise reduction technology that works together to monitor the sounds around you and instantly produce an opposite signal to reduce background noise, which helps isolate speaking and suppress the unwanted disruptive sound, making sure you can hear the caller and the caller can hear what you say. Each earbud can get 8 hours of playback from a single charge. The 2200mAh charging case supports 8 times of recharging for both earbuds, gives up to 64 hours of continuous music time. The case is compatible with wireless charging which offers you another convenient charging method and it also can provide emergency charging for mobile. It also has an LED power display on the case which can help check the charging status of earbuds and charging case. It has an IPX7 protection rating that effortlessly protects the earbuds from heavy rain or sweat during intense workouts and all-weather conditions. It is equipped with soft, flexible and secure ear hook in a lightweight design and which makes sure they'll stay comfortably firm in place and won't fall off. The twin earbuds not only can be worked together for stereo music but also can be worked independently. After the first successful connection, theyll automatically connect to the last paired device. Each Bluetooth earbud has one multi-functional press button which can make or receive calls, play or pause, adjust volume, and switch music. Specifications: Color: Black Material: ABS Earphone size 38.8*51.3*30.7mm Charging box size 106*63.2*39.8mm Weight: 150g Usage Time: 8 hours Charging Time: Earphones- 1.5 hours, Case- 2.5 hours Battery Information: earphone 75mAh, charging box 2200mAh Package Includes: 1 x Pair Wireless Earbuds 1 x Charging Case 3 x Pair Ear Tips 1 x USB Charging Cable 1 x User Manual