About this item UP TO 50 HOURS PLAYTIME - These wireless headphones deliver up to 50 hours playtime on a single charge. A quick 10-minute charge provides up to 4 hours of playtime. The headset can also easily connect to non-Bluetooth devices via a 3.5 mm audio cable, allowing for extended listening in wired mode. Deep Bass Sound: The Deep Bass sound is enhanced by the 40 mm audio driver and advanced Bluetooth 5.3 chip, delivering exceptionally clear sound with a full dynamic range, rich bass, and crisp mids, allowing you to enjoy a stunning deep bass and Hi-Fi stereo sound experience. Get lost in the music. STRONG BLUETOOTH 5.3 TECH - The wireless Bluetooth headphones are compatible with all Bluetooth-enabled devices. Advanced Bluetooth 5.3 technology provides a more stable and faster connection, allowing for pairing with two devices simultaneously and seamless switching between them moving quickly from listening to a playlist on your phone to taking a conference call on your laptop. U