Retro Handset Vtech Ls916. Retro handset designed for comfort and style. view larger Simply plug it in to use; easy one-button talk/off switch. view larger Retro Handset for Cell Phone This LS916 retro-styled corded handset is great for adding style and convenience to your cellular conversations. All you have to do is plug it in. Then, enjoy a comfortable fit, reduced exposure to radiation and a fun new way to use your mobile phone. This handset also makes it easy to answer calls with the one-button on/off switch. Volume control Works with most smartphones and cell phones One-touch answer button Handset volume control Comfortable design; fun retro style Audio switch Reduces exposure to cell phone radiation What's in the Box Corded handset, owner's manual One-touch answer button Press to answer or end calls. Handset volume control Slide to adjust the listening volume. Audio switch: Further increases compatibility with different brands of Smartphones. 3.5mm audio plug: Compatible with wide range of Smartphones in the market.9 feet coiled cord increases flexibility. Retro style, Reduces cell phone radiation, Excellent sound quality, Works with most Smartphones