ITEM NAME:Mini USB Numeric Keypad Number Digital Password Keyboard Num Pad 19Keys Description: - Anti-spy password design - Plug and play, easy to use - Waterproof design - Anti-fall, not easy to wear, feel comfortable - Interface: USB - Number of buttons: 19 - Suitable for: bank, business office Package Included: 1Pcs USB Number pad.Anti-spy password design. 1Pcs USB Number pad. - Interface: USB. - Anti-fall, not easy to wear, feel comfortable. - Number of buttons: 19. - Waterproof design.