I'm selling a bone conduction earphone I bought to try out, but it didn't suit me. USB-C, standard size, black Earphone body only Other accessories are not included. Used for about a month. Purchased in April of this year. There are no particular problems with the use. Type: Open-ear Material: Full titanium Battery life: Up to 8 hours Charging time: 1.5 hours Battery capacity: 160mAh Standby time: Up to 10 days Charging voltage: 5.0V ± 5% Wireless range: 10m Frequency response: 20Hz - 20KHz Weight: 26g Dustproof and waterproof rating: IP67 waterproof (excluding swimming) Bluetooth® Version: Bluetooth® 5.1 *USB-C charging. Not magnetic.