Compact mini vertical design with natural handshake design, vertical slope design for palm and with skin-friendly material, fit for human hand structure; Concave area for Thumb and little extended bottom edge for pinky finger, smoother moving and more comfortable grip; Not just mini but ergonomic, reducing hand fatigue caused by long-term use of traditional mouse, releasing the pressure.

• Rechargeable Built-in Battery - Built-in rechargeable 500mA polymer Li-ion battery, at a single power charging for 2-3 hours.

• Ergonomic Vertical Design - Compact mini vertical design with natural handshake design, vertical slope design for palm and with skin-friendly material, fit for human hand structure, not just mini but ergonomic, reducing hand fatigue and releasing the pressure

• With USB Nano Receiver - 2.4G RF wireless mode, with USB Nano receiver, up to 10m/32ft efficient range, just plug and play.