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Comfortable finger grooveLet each finger have the right pinch position,Make it comfortable to fit the key surface.
2.4G
Wireless Technology
Frequency:2405MHz-2476MHzEffective distance: 10mWorking voltage/current:3V/4mA
Rate of return: 250Hz
Bionic Tire type Roller
Rubber wrapping, skintexture. Comfortable obliquescale design, increase friction
with the fingers, the stop
rhythm is clear.