E4worlds White Retro Bluetooth Wireless Handset for Iphone Ipad You may have seen the cheap and cheerful corded versions, but this is the WIRELESS version which has much better compatibility with many more phones, and can be used at up to a 10 metre range. Can also be used with bluetooth equipped computers, tablets and laptops for VOIP communication. The handset is supplied brand new with a USB charging lead You can control the volume with volume button Press and hole the function button, you can turn on bluetooth when red light flash