The Zapper+ controls your TV as well as your Set Top Box and Soundbar if needed. Separate power keys to know which device you are turning on/off. Large black and white keys indicate which device is being controlled. Easy setup in less than a minute; Additionally, you can use the Learning feature, to copy functions from your original remote. The One For All Zapper+ remote control is very well designed, it has a comfortable grip and stability on your table. It comes with an additional wrist strap. Easy control of your devices and all the functions as on your original remote; Works with up to 3 devices including stereos. Compatible with universal devices. Universal compatibility. Learning function. Requires 2 AAA batteries (not included). Size H17.4, W2, D4.8cm. 265g. Manufacturers 2 year guarantee.