BT25 three-channel shelf key label is Speedingiot a 2.4G custom electronic reminder lamp with colored light sound reminder. It has 6 colors, 1 RGB headlight, 1 key confirmation function, transparent shell shell, high brightness, and can quickly find and pick goods in goods management (the found goods have luminous prompt, and the key confirms picking goods), it is suitable for application fields such as rookie post station shelves, supermarket warehouse searching, large warehouse goods searching and picking, etc.