Keep the Music Going: With a built-in 300mAh Battery, you can now enjoy about 24 hours of non-stop music, videos, or movies in Bluetooth mode for long-haul flights or travel with a single full charge Wired & Wireless Connection: Advanced Bluetooth 5.3 chip offers a connection within 10m of your device. The headphone is designed with a 3.5mm audio port, meaning you can switch to wired mode via an audio cable (Not Included) and enjoy your music non-stop Noise Reduction: Adopting intelligent noise reduction design, the headphone can isolate the noise from the environment to restore clear sound, making you enjoy crystal-clear voice All-day Comfort: The headphone has soft earpads. You will be able to experience a marshmallow-like softness texture on the ear cushions for all-day comfort Nice Gift: This headset is an excellent gift for Christmas and birthdays, for boys, girls, family, and friends Specification: Bluetooth version: V5.3 Chip: JL 7006 Bluetooth protocol: Supports a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap\ gatt\rfcomm\sdp\l2cap profile Channel system: dual channel Battery capacity: 300mAh Bluetooth mode play time: 24h Noise reduction mode play time: 17h Talk time: 24h Charging time: 2.5h Speaker specification: 40mm Speaker impedance: 32Ω Speaker sensitivity: 110db±3db ANC noise reduction: 22db±3db Optimal talk distance: Maximum transmission distance: Wearing method: head-mounted