Features 1、STABLE CONNECTION AND LOW LATENCY: Mini wireless earbud use the latest Bluetooth 5.1 chip, true wireless technology can provide a more stable connection and more stable signal transmission for the smallest Bluetooth earbud, bringing convenience to your life. 2、SMALL EARBUD: The invisible earbud is lightweigh, so you can barely feel the weight in your ears. It is suitable for long term wear and will not cause discomfort to your ears. This single earbud is very mini and small and hidden, 1:1 size to peanut, very invisible to wear in the ear. Especially suitable for use at work. 3、SINGLE EAR OR BINAURAL: You can use one single earbud, and you can also get stereo sound by pairing any two earbuds to meet your need for binaural headphones, just order 2 of them! 4、4 HOURS LONG PLAYTIME: Single earbud only need 40 minutes to fully charge. The smaller size can provide longer battery life to get you through the day. Usually more than 4hours listening to music and talking time. 5、POWERFUL AND EASY TO USE: The mini earbud with microphone support for Siri voice helper. Separate buttons allow easy control and access to answer and reject calls, mute your voice, raise and lower the volume, play and pause music and even announce callers. Specification Item Type: Mini Single Earbud Material: ABS Color: Black Bluetooth Version: 5.1 Battery Capacity: Built in 100mAh Lithium Ion Battery (included) Connection Distance: 10‑15M Package List 1 x Single Earbud 1 x Charging Cable