Batteries‏:‎2 Lithium Polymer batteries required. (included) Is discontinued by manufacturer‏:‎No Product Dimensions‏:‎2 x 3 x 1 cm; 10 Grams Latest Bluetooth 5.3 and One-Step Pairing: The wireless earbuds adopts the most advanced Bluetooth 5.3 technology, you can get a 2X fast transfer speed (75% higher than the previous generation) and a more stable connection, almost no delay. No matter if it is games, calls or sports, there is no need to worry about signal interruption. Once the bluetooth headphones are connected for the first time, the charging case can be opened to connect to your device for added convenience. High-fidelity Audio and Crystal Clear Call: Wireless earphones with 13mm vibrating diaphragm and AAC/SBC audio coding technology, resulting in sufficiently strong bass and naturally connects to the mid and high frequencies. Noise cancelling earbuds built-in quality MIC Clear and (CVC) 8.0 noise cancelling tech that effectively separates your voice from the ambient sound, makes the communication clear, perfect for video calls or online meetings work. Ultra-light and Comfortable Fit: Mini charging case does not take up space to carry, and ear buds wireless earbuds are ergonomically designed, each earphone weighs only 3g, allows you to wear them for a long time without feeling uncomfortable. Ergonomic design provides a comfortable and secure fit that doesn’t protrude from your ears especially for Sports. IP-X7 waterproof can effectively prevent the earphones wireless bluetooth from the damage of sweat and raindrops, made for Gym/travel etc. 42 Hours Playtime and LED Power Display: In ear headphones work for 7 hours on a single charge, up to 42 hours with a charging box. With fast charging Type-C interface, the wireless earbuds bluetooth be fully charged only need 1 hours. Features with smart LED digital display, you can easily know the battery consumption on both bluetooth headphones in ear and the charging case so you can master the time to charge it. The powerful battery allow for all day listening. Smart Touch Control and Universal Compatibility: Touch intelligent design, touch pressure-free, easy to use, fully demonstrated its capabilities, and can be easily controlled without operating a mobile phone. By touching the wireless bluetooth headphones to turn on Siri, make calls, change music, control the volume, stop or call. Wireless headset compatible with all Bluetoth-enabled devices such as cellphones, tablets, TV, ect. Whether it is a single use or sharing to others both good choice. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store