Cables and TapString (optional)

Longness:50CMThe stings allow you to hang the keypad on the neck so it is not easy to get lost.You can also print the Logo on the string so the audience will remember you. It is a good way to do advertisement, isn’t it?

Battery (optional)

Standard AAA batteries, you can buy it from any store around you and install it by yourselves, or you can ask us to buy it and install it in the keypads for you. But only ocean and airplane shipment allow the batteries inside the keypads, while express shipment does not.