Welcome to ETC Educational Technology Connection (HK) Ltd!
Bluetooth, wireless, rechargeable output
This block is loud. It can play tunes and melodies. Easily change the 18 different notes and sounds in the app. Set up your own alarm, or give your invention a theme song.
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.