Serene Innovations Cell Phone Signaler Model RF-200The RF 200 Cell Phone Signaler is a desktop signaling device for landline and mobile phones, notifying you when you have incoming calls by phone, Skype, FaceTime and text messages. Features: Works with cell phones and landline phones For cell phones, place the phone on the RF 200 cradle and it will flash when it detects the vibration of your cell phone Unique flashing patterns to distinguish between incoming calls or messages Indicator light lets you