VTech IS7121_-2-22 Manual - Manual (Page 115)

Appendix
110
Technical specifications
Frequency control Crystal controlled PLL synthesizer
Transmit frequency Handset: 1921.536-1928.448 MHz
Telephone base: 1921.536-1928.448 MHz
Doorbell: 1921.536-1928.448 MHz
Channels 5
LCD 128 (RGB) x 160 DOTS; 1.77’’; TFT PANEL
Nominal effective range Maximum power allowed by FCC and IC. Actual operating range may vary
according to environmental conditions at the time of use.
Power requirements Handset unit: 2.4V Ni-MH battery
Doorbell unit: Two 2A batteries
Base unit power adapter: input: 100- 120V AC 50/60Hz
output: 5V DC @ 450mA
Doorbell unit power adapter: input: 100 - 240V AC 50/60Hz
output: 6V DC @ 600mA
Charger unit power adapter: input :117V AC 50/60Hz
output: 5V DC @ 300mA
Memory Directory: 50 memory locations; up to 30 digits and 15 characters
Caller ID log: 50 memory locations; up to 24 digits and 15 characters