Manufacturer SpecificationMain Function Remote control watch Includes volume increase/decrease， channel switching， power ON/OFF function for TV and DVD.Multifunction also involves alarm function， stopwatch function(split time measurement) and EL backlight function.Easy to operate and wear without disturb yourself to find a TV remote control when sitting in your chairMode Auto Search ModeRemote Control Compatability TV， SAT， DVD， LD， VIR， VCR，VCDTransmitting Distance 2 - 5 meter (9-16 feet)Transmitting Angle 30 Degree angleClock Display 12H/24H SelectableBattery Size CR2032Calendar 200 Years Calendar (1901-2099)Operation Hold Touch OperationNote This remote control watch is compatible with most of the TVs but NOT ALL， especially TVs with STB.Package List 1 x TV Remote Control Watch1 x English Manual