saful TS-K108 1V2 wireless dingdong doorbell with two indoor unit

Place of Origin	China

Name : wireless dingdong doorbellBrand :SafulModel No. :TS-K108 1V2Discription: wireless dingdong doorbell, 1 outdoor unit, 2 indoor unitsGross Weight :0.27kgPacking Size :packing size:10.6cmx8.5cmx7.5cm G.W. 0.27kg 20pcs/CartonFeedbackNew wireless dingdong bell !!1V1, 1V2, 2V1 for choices !Product IntroductionThis product is a smart doorbell which is unlike the traditional wireless doorbell. It is simple & easy to operate, has stable transmission signal, fit for apartment, villas, home, hospital and many other places.This product is according to the rules of the frequencies using of our country. It won’t produce harmful electromagnetic interference.Please carefully read the use manual to correctly grasp the installation, operation methods.Features1. simple design, elegant, chic style;2. ultra-low-power design, energy saving and sustainable use3. 300 m long distance remote control, stable signal;4. 36 polyphonic ring tones for optional;5. Adjustable indoor ring volume.Technical?parametersTechnical?parametersIndoor?receiverOutdoor?transmitterVoltage?RangeAC:110V-220VDC12V?23AAlkaline?batteries*1Operating?temperature-10℃-55℃-20℃-65℃Transmission?distance?300?meters?in?open?areaOperating?Frequency?433.92MHz±200KHzVolume?25-110dBPower?0.1WOperate Instructions1, volume adjustment,Shortly press the volume button for once,the volume will increase a grade, total 3 grade,It will change in cycle.2, music selection