New, Unused Bulk product Minor scratches, scuffs, and remaining molding flash may be present. Upgraded Version Bluetooth Version: 5.0 → 5.3 Interface: microUSB → Type-C Brand: DISOUR Model: C28 Working Range: 10m (without obstacles) Battery Capacity: 140mAh Charging Time: 1 hour Playback Time: 4-6 hours Audio Interface: 3.5mm AUX Stereo Charging Interface: USB Type-C Hands-free Calling: Supported in RX/Receiver mode only Included Accessories: 3.5mm Audio Head USB-A to C Charging Cable English/Chinese Manual Shipping is planned via Yu-Packet Post Mini from Yu-Yu Mercari. Thank you.