ITEM NAME:10pc TTP223 Capacitive Touch Switch Button Self-Lock Module 2.5-5.5V For Arduino Product Description Description: Specifications: Power:2.5-5.5V Trigger setting mode:(1->Short;0->No Short) AB=00:No-lock High TTL level ouput; AB=01:Self-lock High TTL level ouput; AB=10:No-lock Low TTL level ouput; AB=11:Self-lock Low TTL level ouput Size: approx. 15*11*1mm/0.59*0.43*0.03'' Net weight: approx. 8g Quantity: 10pcs Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Included: 10 x Capacitive Touch Switch Button Self-Lock Module.Included: 10 x Capacitive Touch Switch Button Self-Lock Module. Trigger setting mode:(1->Short;0->No Short). Due to the different display and different light, the picture may not reflect the actual color of the item.