With superior performance and extremely low power consumption, the AVANTEK CB-21 wireless doorbell stands out from its competitors. It is the easiest and most comfortable choice for homes, office buildings, hotels and much more. Long range: the doorbell supports a wide working range of 30 cm (depending on the use environment). You can be sure that you will never miss important guests or express deliveries again with this doorbell. Durable and waterproof transmitter. The built-in lithium battery has an ultra-long lifespan of three years, saving you the hassle of frequent purchases and replacements. The impressive IP55 rating is dustproof and waterproof, making the transmitter robust enough to withstand various outdoor environments. And with an operating temperature of -55 to 140 ° C, the transmitter can work for you even in the harshest weather conditions. Music for your ears. With a large selection of 52 melodies, you can easily choose one that suits your preferences, enough for a new melody every week of the year to never get bored. It is easy and easy to select your favorite melody using the Next and Back buttons. You can also set a different ringtone for each transmitter to know exactly which bell was deducted. In addition, the built-in 40mm stereo speaker provides clear and balanced sounds. Innovative Memory Function One of the great advantages of the AVANTEK doorbell is its memory function. Every time you turn on the device after a power outage, you remember your last level of melody and volume. This makes it not only extremely convenient, but also very easy to use. Note: Metal disrupts the signal and shortens the transmission range. Place the transmitter in areas away from metals.

• HIGH PERFORMANCE The transmitter has very low power consumption; uses lithium battery with a maximum lifespan of 3 years; IP55 protection rating is dustproof and waterproof; operates between -50°F and 140°F; Can withstand various adverse weather conditions
• Memory function: remembers your last melody and volume after a power outage; No need to reset your previous settings; Comfortable and user-friendly design for enhanced user experience

Specifications

Common questions