【Ear Clip Air Conduction Headphones】The ear clip open design earbuds adopt an "open design" that allows you to enjoy high-quality music or other sounds while hearing ambient sounds around you; suitable for outdoor runners (to hear approaching vehicles or pedestrians) 【LED Power Display and 40H Playback】Dual digital specular surface LED power display outside of the case is to show the power level for charging case and earbuds. When you put earbuds into the case, then earbuds will start to be charged. It can be fully charged once, and still has sufficient power after continuous music playback for 5 hours. In addition, with 1.5 hours of charging with a charging box, it can continue to play music for an additional 40 hours. This greatly improves the user experience as users do not need to charge frequently while using this product 【Bluetooth 5.3 & Fast And Premium】Air Conduction earbuds are Performance iterative Bluetooth 5.3 technology performance upgrade more efficient low-latency algorithm listening to music, watching dramas, and playing games. 【Clear Call and Surround sound】The Air Conduction earbuds are 360°surround sound High fidelity live sound 9D surround sound components, faster response, restorehigh-frequency and bright music.Full mid frequency.thick and elastic low frequency HD voice call Clear as face-to-face 【Automatic Pairing & Smart Touch Control】The ear clip headphones bluetooth adopts hall switch;After first connection,these ear clip wireless earbuds will connect with your device once you open the charging case,which is faster and more convenient;During using,you can touch either earbud to control the phone,such as the music switch,volume adjustment,phone calls,etc. Brand MAcnas Model Name M47 Color Black,White,Yellow Form Factor Open Ear Connectivity Technology Wireless