Top features: - Bluetooth 4.1 so you can listen to your music library wirelessly - Control all your calls, music and volume with the ear cup control - Up to 12 hours of audio playback on a single charge Bluetooth 4.1The Goji GOVBT17 Entry Wireless Headphones feature Bluetooth 4.0 which means you can stream your music library wirelessly. This means you don't have to mess around with cables and can move up to 10 metres away from your device without losing signal.Ear cup control With ear cup control, you can answer calls, pause or play music and adjust the volume straight from the ear cup. This means you don't have to get out your device to control your music.Up to 12 hoursGet up to 12 hours of wireless playback with the Goji Entry Wireless Bluetooth Headphones, meaning you can listen to all your favourite tracks all day without having to recharge.You can also attach a 3.5mm jack cable to the headphones if you do decide to go wired or run out of charge, this means you'll never be away from your favourite songs.