Specification: Size: Approx. 130*57*16mm / 5.1*2.2*0.6inch Photoelectric Resolution: 1600dpi Number of Buttons: 4 (key) (two touches) Wireless Transmission Distance: 10m Button Life: 8 Million Times Wireless Carrier Frequency: 2404-2480MHZ Button Strength: 60-70g Button Stroke: 0.8mm Wireless Channel: 16 (automatic frequency modulation)Power: 2 x AAA batteries (not included) Features: Folding design, easy for you to store, don't take up desktop space.Ergonomic design, stylish look, comfortable hand feeling.Reasonable size and lightweight, portable for carrying and using.Flattening means power failure and low energy consumption.With a simple touch, you can turn pages on the web and have high sensitivity. Notes: 1. The actual product color may deviate from the photo due to light. 2.
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