What is Bluetooth meat thermometer ?

Mini Digital Thermometer Hygrometer,Indoor Temperature and Humidity Gauge Meter Monitor Fahrenheit (℉) for Humidor,Greenhouse,Reptile Tank,Home,Jars

Temperature measuring range: -58℉-158℉ ; Humidity measuring range: 10%-99%RH (Measures conditions every 10 seconds)

Temperature measurement accuracy: ±2℉; Humidity measurement accuracy: ±5%RH

Waterproof Digital Refrigerator Thermometer Large LCD, Freezer Room Thermometer with Magnetic Back, No Frills Easy to Read

Meat Thermometer with Wireless, Bluetooth Meat Thermometer for The Oven, Grill, Kitchen, BBQ, Smoker, Rotisserie, Smart Meat Thermometer Digital with APP

Smart Meat Thermometer with Bluetooth for The Oven, Grill, Kitchen, BBQ, Smoker, Rotisserie

Guided Cook System: Walks you through every step of the cooking process to guarantee perfect and consistent results. Connectivity Suite: Monitor your cook from a phone or tablet over Bluetooth. 165ft Long Range Model: 100% WIRE-FREE that's perfect for outdoor cooking. The first truly wireless smart meat thermometer.