Lithium Bluetooth Technology.This App is only for FraRon Lithiium Bluetooth LFP battery using bluetooth 4.0 BLE technology.This App provides comprehensive monitoring for FraRon Lithiium Bluetooth batteries, including:1. SOC% using Hall effect sensing2. Battery pack voltage 3. Amp meter - charge and discharge current4. Battery Management MOSFET temperature5. Individual Cell Status with balancing indicators6. Connectivity distance up to 10 meters.