🎵 HiFi Stereo Sound: The in-ear wireless earbuds select 13mm large-size speakers and combine with a unique sound guide architecture for full low-frequency rebound and pure high-mid-frequency permeability. Whether you are indoors or outdoors, you can enjoy a musical feast! | 🎵 Auto Quick Pairing: This ear buds wireless bluetooth earbuds has a built-in hall effect switch, after the first successful connection, you only need to open the charging case lid, the bluetooth headphones will automatically power on and connect with your phone, the range can reach up to 100ft away. | 🎵 Dual LED Power Display: The bluetooth earbuds has a dual digital battery display case. Left / right LED light bar display the battery level of the ear buds, and the middle number shows the battery level of the charging case. Let you keep abreast of the usage of the earphones and charging case and charge them in time. | 🎵 Smart Touch Control: The touch control is on the side of the earbuds pole, and the unique touch control greatly reduces the probability of you touching the earphone by mistake. And easily control volume, up and down songs, pause/play, answer/reject calls, and call Assistant. | 🎵 Comfortable to Wear: According to a large number of ergonomic simulation tests and ear canal research, multiple parts are carefully designed, and the curvature of the earbud is the same as the surface of the human ear, which is suitable for most people's ear canal and will not feel uncomfortable for long-term wearing. The wireless headphones come with 3 (S/M/L) size ear tips to ensure a secure and comfortable fit. | 🎵 50H Playback in Turn & Bluetooth 5.3: The advanced Bluetooth 5.3 technology provides a faster, more stable connection for the headset, syncs audio and video without latency, and is broadly compatible with iOS/Android/Windows systems; A single ear bud can be used for 5 hours on a single charge, and the charging case can provide an additional 4 times the power of the earphones. The bluetooth headphones can be used alternately to listen to music for a total of 50 hours. | 🎵 IPX7 Waterproof & Lightweight: The surface of the earbuds wireless bluetooth has a nano-coating to prevent water and sweat from penetrating, you can listen to music while running, working, reading, sleeping, etc. (cannot be used while swimming). These headphones wireless bluetooth are small and light, single earbud is only 0.11oz, JcalTuddy earbud size is 0.92*0.61*0.87in, charging case size is 2.3*1.04*1.81in, It’s more convenient to carry.