TweetWireless alarms from ESP and Texecom. They can be used stand alone or in conjunction with a hard wired system. The Infinite is a complete wireless burglar alarm that can be expanded to be much more than a wireless burglar alarm. The Texecom Ricochet is specifically designed as addition to the Texecom Premier hard wired burglar alarm system only. The Infinite wireless burglar alarm is one of the best wireless burglar alarms available in the market today in our opinion.