Brand new, unopened product. Elecom Wireless Headset Black LBT-HS21MPBK Discounts not available. Product Description 【 Specifications 】 ■ Communication method: Bluetooth(R) standard version 5.2 ■ Output: Bluetooth Power Class 1 ■ Maximum communication distance: Approximately 10m *without obstacles ■ Operating frequency band: 2.4GHz band ■ Modulation method: FHSS (Frequency Hopping Spread Spectrum) ■ Supported Bluetooth profiles: HFP, HSP, A2DP, AVRCP ■ A2DP supported codecs: SBC ■ A2DP supported content protection: ○: SCMS-T ■ Maximum number of registered devices: 8 ■ Multipoint (simultaneous standby): 〇 ■ Driver unit: Sealed dynamic ■ Playback frequency band (A2DP): 20Hz-20kHz ■ Maximum continuous playback time: Approximately 13 hours ■ Maximum continuous talk time: Approximately 8 hours ■ Maximum continuous standby time: Approximately 150 hours ■ Power supply: 5V (USB charging) ■ Built-in battery: Lithium-ion rechargeable battery ■ Charging time: Approximately 2 hours ■ Microphone type: Electret condenser type ■ Input terminal: USB Micro-B port (for charging) ■ Operating environment conditions (temperature): 5℃~35℃ ■ Operating environment conditions (relative humidity): 20%~80% *However, without condensation ■ External dimensions (width x depth x height): Approximately 16mm wide x approximately 35mm deep x approximately 58mm high *excluding protrusions ■ Weight: Approximately 10g ■ Body color: Black ■ Regulatory compliance: TELEC ■ Accessories: USB charging cable (USB-A - USB Micro-B), ear caps (S, M, L: M is already attached to the main unit), ear hooks (1 each for right and left ears) Bluetooth single-ear compact hands-free earplug type with microphone mute and power switch volume button