Gyde Gerbing's 7 Volt Thermogauge (Bluetooth)-Outdoors Connect your Gyde 7v battery in your Gyde 7v clothing to the adapter. The adapter will pair easily with your Smartphone App. You will have wireless control of the heat within your garment. Wireless control four optimized heat settings iOS and Android compatible Constant battery status display Notification when battery reaches 20% and heat level resets to low