http://www.riitek.com/product/218.html
Mini Keyboard X1
Mini Keyboard X1 Mini Keyboard,Portable 2.4G Mini Wireless Keyboard with Touchpad mouse Combo Product Specs: Connect port: USB2.0 or laterProcessor(MCU): TLSR8267F512ET48Input voltage: 3.7-4.2VWorking Current: ≤56mASleeping Current: ≤12uAProduct weight
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