Mono headset - hands-free in the car? Listen to music on the go or during sports? This mono headphones HK375-S from Motorola, it is possible Crystal clear - Wireless headphones with microphone offer crystal clear sound. The cVc technology filters out background noise during phone calls, allowing you to be heard even in busy places or outdoors in windy days. About Bluetooth The single-ear headset works wirelessly via Bluetooth 5.0. Multipoint technology allows you to connect multiple devices at the same time. For example, if you have a business and private mobile phone. Or if you want to connect your laptop for a video call. Smart Voice Assistant - With the intelligent voice assistant, this headset goes far beyond calling and music. Plus - You can use these headphones for up to 8.5 hours continuously and they have a wide wireless range up to 10 m. You can also talk or play sports in the rain. The mono headset is protected against water splashes and sweat according to IPX4 standard. The ear hook keeps the lightweight headset at only 10g in place.