Features 1、With noise cancellation, it can perfectly and truly present the sweet voice of the telephone operator. 2、Having multiple functions and adjustable volume, it is more easy and convenient to use. 3、Having FSK/DTMF caller ID display function which can check 30 16-bit phone numbers. 4、Convenient and practical earphone stand. 5、With backlight instructions, it will have backlight flashing instructions when ringing. Specification Description: With comfortable design and multiple functions, it is easy and convenient to use. Good choice for you! Features: 1. With noise cancellation, it can perfectly and truly present the sweet voice of the telephone operator. 2. Having multiple functions and adjustable volume, it is more easy and convenient to use. 3. Having FSK/DTMF caller ID display function which can check 30 16-bit phone numbers. 4. Convenient and practical earphone stand. 5. With backlight instructions, it will have backlight flashing instructions when ringing. 6. Intelligent calling with closed sound with indicator light indicating. 8. Being tiny and easy installation. Specifications: Item Type: Traffic Telephone Material: ABS Size(Mainframe): Approx. 13 x 10.5 x 5.5 cm / 5.1 x 4.1 x 2.2 inch Weight: 429 g Color: Black Package Include: 1 x Telephone Mainframe 1 x Headphone Bracket 1 x 3.5mm to 3.5mm Connecting Line 1 x Telephone Line of Six Slots and Two Pins 1 x Traffic Headset 1 x English Introduction