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