COMPATIBLE Huawei FreeBuds SE 2 Bluetooth 5.3 Wireless Earphone 1. Ergonomically designed and comfortable to wear. 2. Compact and mini in appearance, it does not take up space and is easy to carry. 3. Equipped with Bluetooth technology 5.3 protocol, it is stable and reliable, and synchronizes audio and video, providing an immersive entertainment experience and making watching dramas more enjoyable. 4. Built-in touch sensor, you can complete a variety of intelligent command operations by lightly touching the touch area of the earphone handle, which is easy to use. Parameters: 1. Bluetooth version: 5.3 2. Wearing method: semi-in-ear type 3. Charging time: Charging box to charge the earphones: about 60 minutes Empty box wired charging: about 110 minutes Headphones in the box wired charging: about 110 minutes 4. Charging interface: USB-C 5. Battery capacity: Headphones: 41mAh, charging box: 510mAh 6. Music playback and call duration: Listening to music: 9.0 hours of use on a single charge of the earphones, 40 hours of use with the charging box Voice call: 5 hours of use of the earphones on a single charge, 24 hours of use with the charging box 7. Use time: 9 hours; with charging box: 40 hours 8. Waterproof level: earphones: IP54; charging box: not waterproof 9. Headphone size: 33.66mmx17.83mmx18.13mm, charging box size: 50.40mmx50.31mmx23.40mm 10. Weight of earphones: about 3.8 g+-0.2 g, weight of charging box: about 33 g+-1 g Package List: Headphones x 1 pair Charging box x 1 Three Guarantees Voucher x 1 Quick Guide (with safety information) x 1