Features: Ergonomic Design: The earplugs are designed according to the shape of the ear, very mini design style, very lightweight, fit the earhook firmly, suitable for long-term wearing without causing discomfort to the ear. EASY TO USE: These earbuds for work are super easy to use. Built-in microphone, no need to take out your phone, just touch your finger, you can easily switch to pause music, answer calls, reject calls or track music. Everything is getting easier and easier. Dual Noise Reduction Technology: Excellent physical noise reduction combined with acoustic noise reduction technology, you can enjoy a quiet sleeping time with the sleep earbuds. Specially designed for sleep: Ultra-miniature earbud body design, if you like to sleep with earplugs and don39;t like the feeling of foreign objects in your ears when you sleep on your side, then these sleep earplugs are your best choice. Premium Sound Quality: These sleep earbuds bring you high-quality audios enjoyment. Stereo surround sound effect, immersive music enjoyment. The perfect sleep companion. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Transmission distance: 10 meters obstacle-free Charging interface: micro fast charging Wearing method: semi-in-ear wearing style Charging time: about 60 minutes Standby time: about 480 hours Product color: black/white/skin color Package List: 1 set x Bluetooth-Compatible Earphone