IP7 Waterproof and Weighting 4g only Ultra-Light Earbuds: The pocket-sized charging case does not take up any space to carry, and offer amazing comfort wearing the 4g ultra-light waterproof earbuds providing a secure fit that snuggles nicely in your ears. The waterproof headphones are equipped with nano-coated waterproof material, which can effectively prevent splash damage caused by sweat and raindrops, especially for sports, workouts, gym. Touch Control Switch Easily between Single and Double Mode: MD058A wireless earphones can be used as a Single Ear Mode and easily switch between Single Ear Mode and Double Mode during operation. You can touch any either of the two wireless bluetooth earbuds to control the device, such as music switch, volume adjustment, phone calls, voice assistant, etc. No need to adjust through your mobile phone. USB-C Efficient Charge for 25H Impressive Hi-Fi Stereo Music: Supported by a powerful 13mm speaker driver unit and semi-in-ear acoustic structure offers incredible sound quality and crystal clear treble. The charging case quickly charge the android earbuds with USB-C cable, fully charged in an hour. MD058A Bluetooth earphones provide five hours of playback time with one charge and can be extended up to 25 hours by using the portable charging case. You can enjoy your music anytime, anywhere. Enjoy Bluetooth 5.3 and Fast Auto Pairing: Latest Bluetooth 5.3 technology achieves lower latency and stronger anti-interference. MD058A true bluetooth headphone offer audio delays much lower than 65ms. Feature reduces the number of disconnections of the ear buds in complex environments(places with many people, such as subways and buses). Adopting hall switch, after the first connection, it will connect with your device as soon as the charging case opens. 4-Mic and ENC Call Noise Reduction: Each headset has 2 built-in microphones, equipped with Environmental Noise Reduction (ENC) technology that can suppress 80% of the interfering background noise in the calling environment, intelligently enhances human voicethrough the four microphones, the wireless headphones accurately pickup voice and offer effective noise isolation achieving lossless and clear voice calls between the two parties, making communication more efficient.