About this item UP TO 50 HOURS PLAYTIME - These wireless headphones deliver up to 50 hours of playtime on a single charge. A quick 10-minute charge provides you with up to 4 hours of playtime. These headphones can also easily connect to other non-Bluetooth devices via a 3.5 mm audio cable, allowing you to listen for even longer in wired mode. Optimized Sound Quality with 3 EQ Modes: Experience improved sound effects and a better listening experience. The EQ button allows free switching among three preset EQ settings to meet the listening requirements of different music styles. The headphones with a microphone ensure Hi-Fi sound calls, making your conversations clearer. STRONG BLUETOOTH 5.3 TECH - These Bluetooth headphones are compatible with all Bluetooth-enabled devices. Advanced Bluetooth 5.3 technology offers a more stable, faster Bluetooth connection and can be paired with two devices at once, allowing you to seamlessly switch between themmeaning you can quickly switch from listen