| |
RF-250 |
RF-222 |
RF-100 |
RF-170 |
| Range |
100' (31m) |
100' (31m) |
100' (31m) |
50' (15m) |
| Keys |
104 full-size |
67 full / 17 compact |
3 |
— |
| Numeric Keypad |
Yes |
Yes, overlayed |
— |
— |
| Sending LED |
Yes |
Yes |
Yes |
Yes |
| Caps Lock LED |
Yes |
Yes |
— |
— |
| Low Battery LED |
Yes |
Yes |
No |
No |
| Dimensions |
18.7" x 6.5" x 1.7" keyboard
18.7" x 3.5" x 1.7" wrist rest |
12.5 x 6.1 x 1.0" |
6.0" x 2.0" x 1.25" |
4.5" x 2.5" x 1.25" |
| Weight |
2.0 lbs (0.90 kg) keyboard
1.0 lbs (0.45 kg) wrist rest |
1.0 lbs
(0.45 kg) |
0.25 lbs
(0.11 kg) |
0.25 lbs
(0.11 kg) |
| RF Link |
2-way
916.5 MHz |
2-way
916.5 MHz |
2-way
916.5 MHz |
2-way
916.5 MHz |
| Encryption |
Yes |
Yes |
No |
No |
| Addresses |
65,000+ |
65,000+ |
65,000+ |
65,000+ |
| Color |
black |
black |
black |
black |
| Batteries |
2 AA |
2 AA |
1 AA |
2 AA |
| Mouse |
2-button / touch pad
in detachable gel wrist rest |
Optical trackball
with left/right buttons |
— |
Laser mouse
with
wheel and
left/right buttons
|
External Mouse
Support |
PS/2 wheel mouse |
No |
— |
— |
| Warranty |
1 year |
1 year |
1 year |
1 year |
| Price |
US$299 |
US$199 |
US$199 |
US$199 |
