PROMATE Bluetooth v5.1 Mono Headset Multi-Point Pairing, Noise Cancellation, Dual Microphones, Battery Capacity 400mAh, up to 64 Hours Usage Time. Gain optimized productivity and performance with Engage-Pro. Quick and easy connectivity to multiple devices and a 10m working range let you work without hurdles. It is equipped with an industry-leading aptX chipset that provides echo suppression, noise suppressing mic and wideband audio—wireless freedom and productivity with Engage-Pro.