Additional Details ------------------------------ Product description: Manufacturer: HP Inc. Manufacturer Part Number: 7S3Y5AAABA. Brand Name: Poly. Product Line: Voyager. Product Series: 4200. Product Model: 4245 Office. Product Name: Voyager 4245 Office Headset. Product Type: Headset. [Technical Information] Connectivity Technology: Wireless. Wireless Technology: Bluetooth. Wireless Operating Distance: 328 ft. Bluetooth Standard: Bluetooth 5.0. Sound Mode: Mono. Minimum Frequency Response: 20 Hz. Maximum Frequency Response: 20 kHz. Features: Rechargeable Battery. Multipoint. Comfortable. Lightweight. SoundGuard Technology. Replaceable Battery. Sub Band Coding (SBC). Convertible Design. Bluetooth Profiles: A2DP. AVRCP. HFP. HSP. [Battery Information] Battery Chemistry: Lithium Polymer (Li-Polymer). Battery Capacity: 140 mAh. [Earpiece] Earpiece Design: On-ear. Earpiece Type: Monaural. [Microphone] Microphone Technology: Noise Cancelling. Microphone Design: Boom. [Physical Characteristics] Form Factor: Supra-aural. [Miscellaneous] Application/Usage: Desk Phone. PC. Mobile Device.