... 4.80-90DB, strobe light 5. high quality JINHUA LUCKARM ELECTRIC CO.,LTDModel: Piano musical doorbell, digital doorbell, intelligent wireless doorbell D3901 Features · Suitable for homes, office ... . · Best service, high quality, competitive price, timely delivery. Packing Cartonpcs/CartonG.W (kg)N.W (kg)MOQCTNS/20"FCCertificateBattery wireless doorbell (DC)0.084 ...