Fully Wireless: Free from wires. Enjoy music and calls in total freedom with wireless earphones. Compatible with smartphones, tablets, laptops and all devices that feature Bluetooth technology. Easy to use. Simply activate the Bluetooth setting to pair your headphones with the device. Touch controls. Songs and calls managed directly from the headset. Play time: 5 hours, total play time with 20 hour charging case. Box contents: earphones, charging case, charging cable, 3 sizes erasers, instructions.