Product details>>> Long Battery Life Bluetooth Earbuds: T12 Bluetooth earphones provide 6-8 hours of continuous use per charge. The 500mAh rechargeable charging case extends the usage time to 40 hours by providing 5 additional charges. Built-in dual LED power display keeps tracking the case?s remaining power and earbuds? charging status in real-time.>>> Easy Pairing Bluetooth 5.3 Wireless Earphones: Latest Bluetooth version 5.3 has more stable transmission, lower power consumption and longer range with fewer dropouts than Bluetooth 5.1. Once paired for the first time, the two wireless earbuds will automatically connect to your device when you simply take them out of the charging case.>>> Crystal Clear Calls Wireless Ear Buds: 13mm chamber speaker driver unit provides stereo sound with deep bass and clear treble for an immersive sound experience. Large chamber acoustic design well balances the internal and external air pressure to avoid sound loss, ensuring you could be heard clearly even in noisy environment.>>> Smart Touch Control Bluetooth Earphones: Equipped with sensitive touch control panels on the left and right earbuds, you can flexibly control music playback, answer or reject calls, adjust volume, switch music and activate voice assistant, etc.>>> IPX5 Waterproof Bluetooth Headphones: The wireless headphones use IPX5 nano-coating technology to seal the surface of both earbuds to prevent sweat or rain from penetrating, allows you to use the in-ear earphones in any weather and workout situation. The earphones supports Bluetooth for iOS/Android/Windows smart devices.>>> Ergonomic Design Earphones: Precise calculations and many experiments were combined to design the shape of the headset. The perfect curvature and compact body weighing only 4 grams provides the ultimate in comfort by distributing the pressure in the ear canal while maintaining stability. And with 3 sizes of ear cups available, there’s always one that suits you best!