These Plantronics BackBeat 505 Headphones have a wireless design so you can listen to music while you're exercising or on the go without worrying about cables getting in the way. They have a lightweight and cushioned design for comfort and can last up to 18 hours on a single charge for consistent use. They feature 40 mm driver units for powerful and clear sound and On-ear controls so you can pause, skip and play tracks, adjust the volume and take calls just by pressing a button. These headphones have a wireless design and can be connected to Bluetooth compatible tablets and smartphones. You can use them to listen to music, podcasts and the radio. They have a lightweight, overhead design with memory foam ear cups for comfort. The Deep Sleep mode will help to save battery power when they're not in use. They have a wireless range of up to 10 metres. Enjoy uninterrupted music by plugging them in via a 3.5 mm jack. The built-in microphones will let you access Siri, Google Now and Cortana as well as answer calls on the go. The Multipoint Bluetooth feature allows you to pair up to 8 different devices and connect 2 devices simultaneously.