ITEM NAME:10PCS 2.5-5.5V TTP223 Capacitive Touch Switch Button Self Lock Module 6 STL ZDU Descriptio n Description: Touch Surface Size: 1.4*1.4cm With Mode: Jog, Self-locking Supply Voltage: 2.5-5.5v Penetration Distance: 6mm Specifications: Material: PCB Color: Blue Package Included: 10 * TTP223 Touch Button Module Note: Please pay attention to the installation: After fixing the module, power it on again, so that he can remember the thickness of the partition. After power-on, it takes about 1S stabilization time. Do not touch the key during this time period. We offer you what you need! 10PCS 2.5-5.5V TTP223 Capacitive Touch Switch Button Self Lock Module 6mm Blue.10 TTP223 Touch Button Module. Touch Surface Size: 1.4 1.4cm. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. We'd like to settle any problem in a friendly manner.