LogiLink Smile. Movement detection technology: Optical, Purpose: Office, Recommended usage: Notebook. Frequency band: 2.4 GHz, Wireless range: 10 m. Wireless receiver interface: USB, Receiver type: nano. Power source: Batteries, Battery technology: Alkaline, Battery type: AAA. Operating temperature range (T-T): -5 - 40 °C, Operating relative humidity range: 20 - 90 %