Seal Shield SEAL TOUCH GLOW2. Device interface: USB, Purpose: PC, Recommended usage: Office. Keyboard dimensions (WxDxH): 395 x 140 x 20 mm, Keyboard weight: 0.363 kg. Power source type: USB. Operating temperature range (T-T): 0 - 50 °C, Operating relative humidity range: 5 - 95 %. Certification: IP 68, NEMA 4X, WEEE, CE, FCC