• Built-in wireless headset and microphone, for listening to music and making telephone calls • Connects to a smartphone or other device using Bluetooth up to a distance of 10m • Up to 10 hours of handsfree calls and music playback • Easy to operate featuring button controls for power on/off, volume control and previous/next song • Stretchy, warm and comfortable to wear. Ideal for work, running and other outdoor leisure pursuits • Supports Android and iOS voice assistant • One Size • Machine washable • Supplied with USB charging cableThis smart headband has a built-in wireless headset and microphone, for listening to music and making telephone calls. It connects to a smartphone or other device using Bluetooth up to a distance of 10m. Fully charged, the headband offers up to 10 hours of handsfree calls and music playback. It is easy to operate featuring button controls for power on/off, volume control and previous/next song. The headband is stretchy, warm and comfortable to wear. Ideal