AuYou Portable Wireless Doorbell Kit with 1 Receiver Plugin and 2 Remote Buttons Transmitter for Hard Hearing Range 100m,36 Melodies Chimes Doorbell 2016 Fashion and elegant design doorbell push buttons; ABS material attributes of high rigidity which is also anti-burn and impact resistance; Quality, Durable,Clean design; Add some fun, stylish, geometric decor to your house or apartment. 3 Different adjustable volume levels (low, medium and high;85db ) to fit a variety of situations; Make sure that everyone in a large warehouse can hear, delivery ring tones to people when they arrive; Alao make it easy for a patient to call their caretaker while giving the caretaker freedom to roam. 36 Different stereophonic music choices lets you decide what you hear! Give peace of mind with this simple wireless call device for an elderly parent. Transmitter push button is rated IP44 waterproof and acceptable for outdoor use; CEFCCROHS certified; Very simple installation - portable or wall mount. Package contents: Portable AuYou Doorbell Chime x 1; Button x 2; DC3V CR2032 x 1; Screws x 4; Anchors x 4; Double-side sticker x 2; User Manual x 1.