Jabra Perform Go 4 Mono Bluetooth Headset, Single-Ear Wireless Headset with Dual-Mic Noise Cancellation, 11-Hour Talk Time, 5.3 Multipoint, IP54, USB-C Charging, Replaceable Battery, Black

Up to 93% Microphone Noise Cancellation – Dual-mic beamforming with intelligent noise-cancelling algorithms isolates your voice so callers hear you clearly, even around engines, tools, traffic or busy sites. Built for Mobile Workers – Lightweight, discreet single-ear design sits comfortably and securely on either ear for long days moving between tasks; IP54-rated against dust and water splashes and built with durable PC/ABS, aluminium and TPU materials. 11-Hour Talk Time with Replaceable Battery – Rechargeable lithium-ion battery delivers up to 11 hours of talk time, 4 days standby and a 2-hour charge via USB-C; the user-replaceable battery extends product life for more sustainable long-term use. Bluetooth 5.3 with 100m Range and Multipoint – Connects simultaneously to two devices (phone + work phone) with up to 300ft/100m of dependable range, so you can leave your phone in a tool belt or vehicle and stay connected across a site or warehouse. Intuitive Hands-Free Controls – Flip-to-answer/mute boom arm, volume and call buttons and voice-controlled answer/reject let you manage calls without touching your phone — even when wearing gloves; 10mm optimised speaker delivers crisp incoming audio.