• 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 for work, running and other outdoor leisure pursuits. It can be plugged directly into any standard USB port for recharging, for example in a car, laptop or portable power bank. Supports Android and iOS voice assistant. Available as one size. Machine washable. Supplied with USB charging cable. 1 x Smart Wireless Headband with USB Charging Cable, Black, One SizeTechnical SpecificationBluetooth version: 5 Charging time: 2 hours Maximum playback time: 8-10 hours Power source: Rechargeable Lithium-ion (USB cable supplied) Rated voltage: 3.7V Wireless connection range: 10mTechnical Specification:Colour: Black Size: One Size Power: Rechargeable Lithium-ion Product Type: Head LampsDimensions: Length: 90mm x Height: 200mmWeight: 0.067KgWarranty: 12 months