Description:Adds wireless Bluetooth connectivity to your blocks. Can also provide power to other blocks when connected to a power bank or power source via USB.Features:The magnetic design at the back of Neuron blocks makes you can simply place your gadget on the magnetic surface such as whiteboard;The redesigned magnetic Pogo Pin-connectors effectively prevent blocks from being connected incorrectly;Supports serial port communication;Automatically powers off after the block is disconnected, extending battery life;Charges other blocks;Specification: Bluetooth Speciication: BT4.0; Frequency Band: 2402-2480MHz; Antenna Gain: 1.5dBi; Output Power Class: ≤4dBm; FCC ID: 2AH9Q-NU001BT; Anti-drop Ability: 1.5m; Operating Temperature: -10℃~55℃; Operating Humidity: <95%; Pack List: 1xBluetooth Block