ADVANCED BLUETOOTH 5.3 & UNIVERSALLY COMPATIBLE: The wireless headphones adopt the latest bluetooth 5.3 technology which improve the transmission, and provide you a stable and low-latency listening experience. It also makes it compatible with all Bluetooth-enabled devices (Smartphones & Tablets etc)UP TO 80 HOURS BATTERY LIFE: Each earbud can last up to 3-4 hours while in full use from single charge with a 20 hour standby time. A total of 80 hours on the go with the charging case. Fully charge your case within 1 hours & your earbuds within 1 houHANDS FREE: Built-in microphone allows for you to conveniently answer calls for safe driving, etcULTRA-LIGHT & COMFORTABLE FIT: Not only are the earbuds stylish & elegant but their ergonomic design makes them ultra light whilst also allowing the comfiest fitONE STEP & AUTO PAIRING: Turn on your earbuds and access your bluetooth settings on your device to select TWS or "X15" to pair wireless earbuds in just one step. The paired device will connect to the last device automatically the next time you use it