KERUI specialized in producing high-quality wireless doorbells, they sell quality wireless doorbells with high demand. Their products passed CE and RoHS certification.

From the list of reviews from their customers you can tell that they are an honest brand.

KERUI M525 features;

• Button is Waterproof ,Don’t worry about extended use
• 3-Year Battery Life
• Ultra-long Transmission Distance
• Easy to install with the double side adhesive tape or the screws.
• IP55 dustproof and waterproof
• Works between -4 °F to 140 °F; withstands various harsh weather conditions

Ultra Long Operating Range

Operating range up to 500ft / 150m in open area, ensures you to hear and answer the doorbell in time. You will never miss a visitor even if you are a few rooms away or on another floor

32 Ringtones and 4 Adjustable Volumes

The wireless doorbell offers a wide selection of 32 melodies and 4 volume levels to meet your needs for different occasions. Flashing light with audio alert indicators which is easy for people including the hearing impaired to notice.