Welcome to ETC Educational Technology Connection (HK) Ltd!
Bluetooth, wireless, rechargeable input
This block is hot and cold. It tells you the temperature and tells your blocks how to react. Use it to build your own smart weather station or turn on your fan when it gets too hot.
Each wireless block has a Bluetooth chip and rechargeable battery inside it. Simply recharge your block with a Micro USB Charging Cable. Bluetooth Dongle for laptop and charging cables not included.