This is the Riitek 06, Bluetooth, backlight, and usb-C rechargable. Pretty cool and can fit in my pocket. This is the older version, but the new one is about the same price $20 but has RGB backlights. The trackpad is nice and the build quality is nice. People say that the battery lasts a while, around 40 hours of more of use, over 100-150 days of standby, and charging seems to take about an hour and a half.