... power is big, the power loss is low, uses the sound table component (SAW) the steady frequency, 6 . 5G UHF triode ... security;2nd, family burglar alarm;3rd, each kind of remote control control, the electrically operated window blind, the roll-up door, the ... stability, uses the SMT import to paste the piece part, sound surface resonator steady frequency (SAW),6 . the 5G UHF triode ...