Wireless Headphones Sony Bluetooth WH-CH510, Black:Enjoy listening to music without annoying cables. These SONY wireless headphones have the common over-ear design. They sit comfortably over the ears, but they are still very compact. Their ear-covering design ensures great insulation against surrounding noise. The Sony Bluetooth WH-CH510, Black Wireless Headphones have Bluetooth for wireless connection to your device. Say goodbye to bothersome cables. Using a frequency range of 20 to 20000 Hz, you will know that you wont miss a single beat of your favourite song.   These wireless headphones even include a microphone. These wireless earphones from SONY are equipped with 5.0 Bluetooth. The volume can be changed with the control wheel. This model can even pick up your calls. Songs can be switched easily and quickly using the controller. A fully charged battery will last you 35 hr(s). Sony Bluetooth WH-CH510, Black Wireless Headphones Key Features Material of these wireless headphones by Sony Bluetooth WH-CH510, Black is closed Beautiful black colour Buttons for volume control Connection method: Bluetooth Wire-free connection with Bluetooth gives you great freedom Total weight of SONY wireless headphones is 130 g Battery life: 35 hr(s) The SONY wireless headphones have a microphone also Every user is sure to appreciate the reliable microphone. The microphone on these SONY wireless headphones will ensure flawless voice calling with your friends or family. The mic is built directly into the design of the wireless headphones. The Sony Bluetooth WH-CH510, Black wireless headphones microphone is designed with so-called omnidirectional pick-up. It is therefore suitable for more quiet rooms with little background sound.