Sell wireless doorbell or door chime ZTB-28

wireless doorbell or door chime ZTB-28 You May Also Be Interested In: chime door chime wireless doorbell
Acquiescence Music: Double clink sonuds & Alice & Westminster
Optional Music: Double clink sonuds & Welcome (in English) & Welcome (in Arabic)
Self-choosing Music: 12 pieces of Music
Packing: blister
Carton measurement(cm) : 55. 5*46. 5*27
QUANTITY OF PACKAGE: 60 pcs/ctn
Transmission range: 100m(open area)
Approval: CE, R&TTE
Frequency: 315MHz and 433MHz
Negative wave: -57dbm
Quiescent current: 550µ A
Working Voltage: 4. 5V
Transmitting power: 220µ W

Digital code setting in the production process minimize the crossover of the same product in your neighborhood.
Certifications
CE
Model Number
ZTB-28