4 ports USB 1.1 or 2.0 (Optional) HUB
USB power for warmer with power switch, no batteries needed
Dual LCD display
Clock with 12 or 24 hour format, Alarm time / Countdown timer
Temperature display
Keep coffee/tea/drink warm at 50-60.C
Easy installation, no driver required
Flash LED indicator
Product size:115 x 104 x 25mm
unit weight:190-194g