GOOJODOQ J237 7 1 t L 7Bluetooth 1 Tt? 1. Equipped with a 13mm large dynamic driver｜Powerful high-quality sound With a 13mm large driver and 32Ω impedance design, it achieves both powerful bass and clear treble. You can enjoy immersive, balanced sound with a wide frequency range. 2. Low latency 300ms｜Comfortable for videos and games Optimized Bluetooth connection for low latency. There is little sound delay when watching videos or playing games, and the video and audio sync naturally. 3. Long battery life｜Can be used all day long with peace of mind Approximately 3.5 hours of playback with the earphones alone, and up to approximately 14 hours with the charging case. Standby time is over 100 hours. You can enjoy music from morning to night without the hassle of frequent charging. 4. Connect immediately when opened & smart touch operation Automatic pairing just by opening the case. Supports touch operation, allowing you to play music and answer calls without touching your smartphone, and operation is smooth. 5. Lightweight, ergonomic design｜Clear calls & single-ear use supported Comfortable fit that fits your ears, comfortable even during long hours of use or exercise. The high-sensitivity microphone reduces surrounding noise, and calls are clear. Supports switching between single-ear and dual-ear modes.