Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
A slim 21-key infrared remote that transmits on the 38KHz carrier, the frequency most consumer IR receivers expect. It is built for NEC-format gear: USB stereo docks, car MP3 players, foot baths, lighting, digital photo frames and microcontroller boards such as Raspberry Pi and Arduino. The thin PET-faced body and included 3V lithium cell make it a spare or project remote rather than a full-featured living-room controller. It has no learning function or display, so it suits tinkerers and simple appliances, not people replacing a TV remote.
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This is an ultra-thin 38KHz infrared wireless remote control that uses the NEC encoding format. It has 21 keys and comes with its battery.
It suits devices that take an infrared remote, such as USB port stereos, car MP3 players, foot baths, lighting, digital photo frames, microcontroller development boards and learning boards. It also works with Raspberry Pi and Arduino projects.
The remote's range is 8 to 10 m. Obstacles and the quality of the infrared receiver can shorten the range. The surface is made of 0.125 mm PET.