Bluetooth headset 5.3 True wireless earphones with a Bluetooth 5.3 chip for higher transmission speed and stable performance. This design reduces sound deterioration and delay, and minimizes sound skipping and interruptions. Convenient wearing and fixation: can be fixed to clothing or collar and sandwiched between the fabric to prevent falling during movement. When needed, insert the earbud into your ear. When not in use, remove the earbud and the rewind button to store the headset and relieve ear pressure. Ergonomic design for long lasting comfort. Auto pairing: after the initial successful pairing, simply remove the headset from the case to automatically connect to the device. Suitable for any situation: compatible with formal or casual settings. Easy to match with business clothing and suits, and suitable for commuting, business travel, meetings, and presentations. Also suitable as a gift for birthdays, Christmas Day, and Valentine's Day.