This is the ELECOM Bluetooth hands-free headset "LBT-HS11BK". It easily connects to smartphones and PCs, providing clear call quality. It can be used on either ear and supports HD Voice. [Condition] Opened, but in excellent condition. Operation confirmed, all accessories included (USB cable, ear hook, 2 types of ear tips, outer box). [Specifications] ・Model Number: LBT-HS11BK (Black) ・Bluetooth Ver. 2.1 + EDR compatible ・HD Voice compatible (VoLTE call compatible) ・Continuous standby time: Approximately 100 hours ・Weight: Approximately 10g ・Can be worn on either ear