Sanwa Supply Programmable Numeric Keypad (Bluetooth Model) NT-BT26BK

This is a Bluetooth numeric keypad compatible with Bluetooth 5.1. It features an economical and eco-friendly rechargeable lithium-ion battery. It has an on/off switch to conserve battery power. You can assign functions to a standard Japanese 109-key keyboard using dedicated software. It can be switched between three modes. MODE1 allows you to assign functions to the 8 keys excluding the numeric keypad. MODE2 and MODE3 allow you to assign functions to all 27 keys.