Smart Wireless Doorbell Kit With Solar Powered Button And Plug-In Chime For Household,4-Level Volume Features: Unique and elegant style Power saving and durability with solar power transmitter Receiver plug, European / American / British model optional Range in open space: max. 200-300m 2 tunes of different styles,4-level Adjust volume, including mute mode Free pairing: transmitter can be matched with several receivers. receiver can also be matched with several transmitters Package size: 4.09x3.78x3.03 inch,Gross weight:0.4 lb Doorbell parameters: Solar cell: 150mah polymer lithium battery Maximum power of emitter solar panel: 5.5V 25mA 0.13w Working current: 12mA reminder: press the button for 0.5 seconds Working range: about 200-300m (open area) grade of transmitter: IP65 Dingdong machine parameters: Working voltage: 90-260v Standby current: 10mA Working current: 60 Working frequency: 433MHz Power: ≤ 2W Music: 52 Adjust volume: 20-80db (4-gear cycle adjustment) The Package Include: 1 x Doorbell 1 x Ding dong machine 1 x Use manual 1 x Installation tool Hello, Dear Customer, (ლ╹◡╹ლ) Welcome to ☛WICVIK☚ Store ! The product in our shop are made of high quality materials，The latest design in 2024 is the best gift for you.This product makes your home fun! Our store is seriously making home products, we look forward to your first visit! Clearance sale of products at great prices, welcome to our store to choose products! Feel free to contact us if you have any questions.We will solve your problem within 24 hours!