Product Parameters Color: Black Bluetooth Name: 120 USB Output Interface: Type-C Interface Input Voltage: DC5V Charging Time: Less than 2.5 hours Frequency Range: 2.4GHz~2.48GHz Battery Specifications: 300mAh/3.7V Ear Clip Bluetooth Headset TWSi20 This item has not been opened, so its operation has not been confirmed. *To offer a lower price, the item may be shipped without its box due to shipping costs. *Also on sale~* #naaposhop 37-11 /0002