Wireless Doorbell - Outdoor Waterproof Doorbell-Battery Powered

• Battery-operated design without plug-in power supply, completely wire-free and portable. You can install and place the doorbell transmitter anywhere indoors or outdoors conveniently.Wireless Battery Powered & Freely Placed
• Waterproof, dustproof and all-weather resistant structure blocks dust and splashing rain effectively. Perfect for long-term outdoor doorway installation and extends service life greatly.IP Weatherproof Dust & Rain Protection
• 5 gears of volume adjustable, maximum volume reaches 110 decibels. Loud enough to be clearly heard in bedrooms, basements and remote rooms, never miss visitor's ring.5-Level Adjustable Volume Up to 110dB Loud Sound
• 55 smooth, pleasant ringtones for free customization to avoid monotonous sound. The receiver will ring out loud and trigger LED flash light reminder when the button is pressed.55 Melodious Selectable Ringtones with LED Flash Alert
• Built-in restart memory chip. It automatically saves your last selected ringtone and volume setting after power cut and reboot, no repeated reset needed.Power Off Memory Function

What's in the box
1 x Push Button (Transmitter)
2 x Receivers