• 【40 Hours of Playtime】 LED digital display for easy power management, 400mAh large battery charging case provides up to 4 full charges for two 50mAh Bluetooth earbuds, with 5 hours of continuous playback per charge. Up to 40 hours of playtime by alternating the use of ear buds.

• 【IPX5 Waterproof for Sports & Hands-free Calling】 With IPX5 waterproof rating of bluetooth headphones can effectively resist sweat, accident splashes and light rain.Moreover, the bluetooth headphones will remind you by vibration when there is an incoming call, you will never miss any phone call even if you are in noisy environment or exercising.(Please do not use it in the shower and swimming!)
• 【Bluetooth 5.3 and Fast Auto Connection】 The wireless earbud adopt advanced Bluetooth 5.3 technology, which ensure more stable connection, lower latency and lower power consumption during data transmission. Signal of bluetooth transmission will be more stable within 15 meters (without obstacle). Wireless earbud will automatically turn on and connect to the last paired device smoothly upon opening the charging case.
• 【Universal Compatibility】Wireless Earbuds Compatible with most Bluetooth music players, including iPhone, Samsung, Huawei, Xiaomi, Android Smartphone, PC ,Mac and All devices with bluetooth.
• 【Comfortable In-Ear Design】 Combining precise calculations with many experiments to design the shape of the earphones. The perfect curvature with a small body of only 6g disperses the pressure in the ear canal while staying stable to bring you the ultimate comfortable wearing experience.