Single: Use for up to 5-6 hours after a full single charge. Features: A built-in mic, CVC8.0 intelligent noise reduction and Bluetooth 5.0. Headphones: Get F9 wireless headphones with a charging case. Display: Includes an LED power display where the remaining battery is clear at a glance. Range: Connects from 10-15 metres. F9 Wireless Headphones & Charging Case | Living Social