The wireless earbuds with Bluetooth 4.2 version technology is compatible with most Bluetooth enabled devices.You are able to enjoy the music or video with one device. With the sensitive built-in microphone, the earbuds is great for friends chatting and in car driving use. Simply press button to operate the earbuds. After first paired,It just takes a few seconds to pair and practical in your daily life! The charging box uses 600mAh lithium battery that can support several times of charging. The earbud itself built in with 55mAh battery can support 2 hours continous listening. The working range for the bluetooth is usually 10 meters around. The earbud is light weight and easy to taking everywhere. Color: White, Pink Size:1.57"*0.67"