Color: As shown in the First image. Quantity and size : As shown in the title or description. Self Powered Wireless Doorbell, Waterproof No Battery Required 150m Remotel Features: 1.Press the Button, Super Learning Code Can Freely Learn to Match, Can Be an Unlimited Matching Receiver 2.Instead of Using a Battery, the Button Converts Kinetic Energy into Electrical Energy and Sends a Signal when Pressed 3.The Transmitter Can Work Normally in Snow or High-temperature Environment, Waterproof and Dustproof 4.If Multiple Buttons Are Paired with One or More Receivers in the Same System, Each Button Can Be Set to a Different Ringtone 5.Power-off Memory Function: Turn the Power on Again After Power Off, No Need to Re-adjust and Lock the Ringtone 6.The Receiver is Available in a Variety of Plugs, US/EU/UK Plug and AU Adapters, compatible with Most Countries 7.Eye-catching Backlight Flashes when Someone Pushes the Doorbell Particularly compatible with the Elderly, Deaf, and Pregnant Women 8.The Receiver Voltage is 220v 9.The Receiver is a Distance of 150 Meters (in an Open Area), Which May Be Affected by the Environment and Obstacles 10.The Receiver Has 60 Ringtones to Choose From, and the Volume is 0-110db in 5 Levels 11.Just Plug the Receiver into an Electrical Outlet,the Push Button Transmitter Can Stick It to the Door with Provided Adhesive Tapes 12.Transmitter Size:70*46*24mm,Receiver Size:92*62*32mm Note: The Button Cannot Be Placed on an Iron Door Because It Will Interfere with the Signal If the Receiver Does Not Ring when the Button is Pressed After Receiving the Doorbell, Please Pair the Doorbell Features: Doorbell Type: Wireless Type: Doorbells Model Number: FA88 Power Source: AC Power Source: Self-powered DIY Supplies: Electrical Power Source: US/EU/UK Plug AU Adapter Waterproof Grade: IP44 Button Power: No Battery Required Self Powered Melody: 60 Ringtones Volume: 5 Levels 0-110dB Receiving Distance: 150M Remote (in Open Area) Package Included: 1xSelf-powered Wireless Doorbell