Specifications Product Code : PT001C Color : Black USB Interface : Yes Remote Control : Yes Brand Name : DM/OEM Model Number : PT001C Size : 18.6 x 14 x 142 mm Function : Page up and down Control Distance : 20m Battery : Size 7 Battery Type : 1 x AAA Battery Power : 1MW, 5MW Product name : DM laser pointer with remote PT001C Material : PVC+ABC Net weight : 22g Technology : Radio Frequency Frequency : RF 2.4GHz Max Output : less than 12mW Wireless Distance : 20m