Cobra PhoneLynx Bluetooth Cell to Home Phone Connection System (BT 215) Cobra Bluetooth, no fees Energy certified Portable design Thru the use of Bluetooth technology you can use your cell phone service plan from the comfort and convenience of your home phones No monthly or Annual Fee and No New Number is necessary. All calls are placed using your cell phone's plan. PhoneLynx can pair and function with up to two different cell phones The PhoneLynx uses active noise-canceling technology called "clearcall" to improve voice clarity and eliminate unwanted noise from your cell phone calls Place PhoneLynx in a location with good reception and make calls from anywhere in your home or office on your existing phones!