IKE Custom Telephone Manufacturer's products are made of a variety of materials. The outer shell is made of ABS engineering plastics, PC polycarbonate or metal alloy, and the internal circuit uses high-purity copper wires, ceramic capacitors and silicone buttons to ensure signal transmission and operational stability. The body design is ergonomic, the curvature of the handset fits the contour of the ear, the button layout conforms to the finger operation habits, and has IPX-level waterproof and dustproof, drop-resistant and wear-resistant properties; smart telephones also integrate touch screens, voice assistants and Internet of Things functions to achieve visual operation and multi-device linkage. The key telephone supports FSK/DTMF dual-standard communication, adapts to most network environments around the world, and the high-definition noise-cancelling microphone and high-volume speakers ensure clear calls.