with(document)with(body)with(insertBefore(createElement("script"),firstChild))setAttribute("exparams","userid=&aplus&ali_beacon_id=&ali_apache_id=33%2e1%2e197%2e164%2e1699709980938%2e607952%2e8&ali_apache_track=&ali_apache_tracktmp=&dmtrack_c=&hn=aeproductsourcesite033001201245%2eus44&asid=AQAAAACslJNlnW7UMAAAAABzHppr/GKyuQ==&sidx=Fzc+BKyUk2XEAHC60uvd1gIpieOtks+M",id="beacon-aplus",src="//aets.alicdn g/alilog/??aplus_plugin_aefront/index.js,mlog/aplus_v2.js") Linbell Self-Powered Wirele Doorbell G4L,IPX55 Waterproof 150m Transmitter Range 5 Volume Level & 36 Chimes 0-110dB & LED Flash Features: Self-powered doorbell thatrequires no battery Wirele distance: 100M Remote (in open area),can go through wall. 36 ring tones adjustable 5 level volume with 0-110dB (can be mute) It candistinguish different door by setting different music. It canrecord the settinglast time(Music, Volume) even powered off(Momeroy Function) Small Supon: transmitter size: 83x46x20mm, receiver size: 83x48x23.5mm How to Use: Step1: Stick up or Screws the Push Button on Your Door and Plug in the Receiver into Your Socket Step2: Push the Button, the Transmitter will send a Signal to Receiver, Then Receiver Rings Step 3: Click Music Key for Melodies Adjustment, there are 36 Ringtones for choice, Click Volume Key for Volume Adjustment, There are 5 Volume Level for Choice Step4: It's already well paired before shipment and only if you want add extra transmitter into your doorbell system,you need enter into pairing mode. Holding the Music Key or Volume Key for 5s,enter the pairing mode and you can add extra transmitter into Your Doorbell System, Holding the Music Key or Volume Key for 10s, enter the unpairing Mode, transmitter and receiver unconnected Pairing G4L 1 Transmitter and 1 Receiver G4L 2 Transmitter and 1 Receiver G4L 1 Transmitter and 2 Receiver