Sanwa Supply Wireless Quiet Keyboard Wireless Numeric Keypad (2.4GHz Included) SKB-WL37BK

This is a quiet type with significantly less key touch noise than conventional membrane keyboards. Ideal for late night computer work or public facilities. This is a 2.4GHz frequency type with a long radio wave range. It can be operated from up to 10m away. It is a mini size receiver that does not get in the way even when connected to USB. This is a standard Japanese 109A layout keyboard.