Technical Spec:
Unit dimensions: 5.4 x 10.3 x 3.3 cm
Display size: 3.6 x 4.3 cm, 2.2″ diag (5.6 cm)
Display resolution, 128 x 160 pixels
Display type: transflective, monochrome
Weight: 141.7 g with batteries
Battery: 2 AA batteries (NOT INCLUDED); NiMH or Lithium recommended
Battery life: 25 hours
Waterproof: yes (IPX7)
Floats: no
High-sensitivity receiver: yes
Interface: USB