I deal for controlling your HTPC or Android TV box and backlit too.
These can be had on Amazon for the same price but you need prime for the free delivery.
Genuine SanDroid® i8+ black keyboard. The i8+ Android keyboard features a Mini QWERTY keyboard with multimedia control keys as well as a Built-in high sensitive smart touchpad with 360-degree flip design. The i8+ version has an optional backlight feature which can be activated by selecting Fn + F2. Not only does this keyboard have an ergonomically handheld design that is easy to carry and operate, but it also has a built-in removable rechargeable Li-ion battery so you don’t have to worry about constantly buying and swapping batteries. Simply detach the USB dongle and insert into your Android TV box to remotely control, type and navigate.
Receiver(dongle): Nano style
Connect port: With USB 2.0 and above
Transmit Power: Less than +4db
Power supply: Rechargeable 450mAh Lithium-ion battery
Charging voltage: 4.4V ~ 5.25V
Charging current: 300mA
Sleeping Current class1: 0.8mA
Operation Voltage: 3.7V
Operating Current: <14mA
Product Size: 146.8mm*97.5mm*19mm
Distance Range: 10M