Features: brand new and high quality Easy to use: The buttons are very fun to use. When making a call from a troublesome number, just press the red button to make the call and no longer answer the call. (The caller's name is not displayed) Put an end to illegal calls: The call blocker has a number blocking function. Stop bothering your troublesome calls completely. One-click interception of incoming calls: The incoming call interceptor is very convenient to use. It is designed for the elderly. Just press the red BLOCK button to stop all spam calls. The gift for the elderly. Protect your privacy: Mobile phone blocker is the best invention to improve landline privacy. Let's talk about all the annoying voice mails. Phone number shielding international area code: very useful for international aggravated calls and any exchanges that use area codes heavily. Specifications: Material:Plastic Color :Black Size: Approx.6.8x10.8x12cm/2.68x4.25x4.72inch Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Pcx Blacklist Group Number Incoming Call Filter