The most basic feature of wireless doorbells and chimes is the anti-interference element, therefore it is getting the most attention in modification methods and in recent developments. Suppliers in Taiwan as well as in the mainland are upgrading the electronic features that are essential to maintaining the very best performance in doorbells and chimes. The anti-interference factor of wireless plug-in door chimes, that is a feature included in almost all designs, have up to sixteen digital channel codes.

There are new doorbells available that have up to two hundred and fifty-six channel combinations that are specially made for the purpose of significantly reducing interference with the signal.

To minimize interference, some companies are able to offer a buyer up to ten different combination codes that go along with for every purchase of five thousand pieces or more. Virtually all door chime codes are factory installed by the manufacturer, so you do not have to worry about extra installation costs.

Many wireless digital doorbells and chimes also come from mainland-based electrical appliance companies such as Ligao (Zhongshan) Electrical Appliance Co. Ltd can eliminate interference by being able to identify up to five hundred thousand different codes.

When you purchase a door chime doorbell you will find that there have also been developments of easy-access musical ICs. These ICs have made it possible for many door chimes and doorbell products to offer a plethora of chimes or ring tones, including animal sounds to choose from. Taiwan supplier Hsien Long has merchandise you can purchase that will play up to twenty-five different tunes.

Musical features like those mentioned above and their development well indicates a supplier's competence and ability to keep up with current technology. Only midsize and large door chime makers are able to invest in musical features such as custom ring options.

Companies like Canfine Toys Ltd, Telehof Electronics Instruments & Equipment (Shenzhen) Co. Ltd, and Fuan City Shangren Mechanical & Electrical Equipment Co. Ltd, are all companies that can offer musical features with the doorbells and door chimes they sell. In addition, the Fuan City Shangren has several models of doorbells that emit soothing bird songs when you ring.

Sometimes the doorbells are covered with velvet and other types of fabric, and can be marketed as novelty items or gifts.

The material choices of basic design and technology remain conventional, however. The manufacturers continue to use materials typical and usual for the design of doorbell and chime production. For example, because of its housing ability, ABS is still the most common kind of material used especially for the push button doorbell or chime transmitter.

The use of the materials typical for the housing of these door chimes and doorbells can be molded (and certain companies do this) into fancy shapes like flowers, balls and crowns, abstract designs, vintage-style looks as well as many other beautiful designs to choose fromdepending on what will best suit your needs.