Philips SHB7000/28 Bluetooth Stereo Headset, Black (Discontinued by Manufacturer) 40mm neodymium drivers for excellent treble and deep bass. Connectivity Technology: Wireless Bluetooth or corded  enjoy music any way you like Fully adjustable headband to fit every head size Advanced echo and noise reduction for crystal clear calls Handy 0.6m USB cable for easy recharging via your PC