Features: 1. Custom I/O port function, 150 offline voices, support serial communication, fool programming, strong recognition ability 2. Compatible with SU-03T, all external IO ports are added with resistance isolation to avoid chip damage. 3. The on-board high-sensitivity MIC does not need to be purchased separately, and the 8 0.5W speaker is presented as a gift. 4. The pin header design is convenient for plugging and unplugging. Plug and play with -6R01 relay module. 5. Offline identification: support identification of 150 local control instructions, provide standard UART protocol, and also support docking with user-owned protocols. Specification: Color: blue+black Product Name: Speech Recognition Module Material: PCB+Metal Model: -VR01 Working voltage: voice module DC5V; relay module USB input DC5V; terminal/DC socket input DC7~32V Relay interface capacity: 10A, 250VAC 10A, 30VDC Single microphone pickup: support 5m far-speaking scenarios Voice : low power consumption, support Mandarin with accents, low rate Speaker: External speakers support up to 8 2W, 16 1W, 43W Voice recognition module (5V): working current 60mA Relay module Less than 400mA Voice recognition module size: 27 x 37mm Relay module size: 162 x 44mm Package Contents: 1 x Voice module 1 x Relay 1 x Speaker 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.