HK526F is a wireless
receiver chip , HK526E
is a transmitter chip .
Dual tone sound effect .
" Ding-Dong " , " Ding-
Ding " and " West-
Minster bell sound for
3 sounds available .
Fixed 1 time for sound
output .
12 address bus , maxi-
mum option to 4096 set
encode code for wire-
less remote control .