Myfox BU3001 Wireless Keyfob (Bluetooth Hands-Free Remote for Home Alarm) Type: Accessories Specifications: Battery: One CR2032 battery. Lifetime of 12 months in normal use. Power Supply: Battery-powered Body: Polycarbonate V1, off-white Wireless connexion: Range of up to 164 ft of open space Protocoles: Bluetooth Miscellaneous: LED command confirmation Protocol: WiFi