Welcome to our store! 1. HANDSFREE FUNCTION: You can choose hands-free calls according to your needs and intelligently adjust the speaker volume. 2. INCOMING CALL SIGNAL SELECTION: When you don't want to be disturbed, you can choose to turn off the ringtone so as not to disturb office calls. 3. ADJUSTABLE AUDIO VOLUME: Supports volume adjustment, you can adjust the volume in the handset with a single or double button. 4. CALLER ID: Caller ID is automatically identified and supports both DTMF and FSK dual standard modes. 5. QUALITY MATERIAL: The phone is made of high-quality ABS material, which is wear-resistant, sturdy, and durable, and has a long service life. Item Type: Phone Material: ABS Color: Black Function: Caller ID, Hands-free calls, Do Not Disturb, etc. Scope of Application: Office, Home, Hotel Room 1 x Phone 1 x Earpiece 1 x Phone Line 1 x Connection Cable 1 x Manual Satisfaction Guarantee: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory customer service.