Feature:1. 0.91IN DISPLAY SCREEN: PCB adopts immersion gold circuit board, and the antenna tuner adopts 0.91in organic light emitting diode display.2. NPO CAPACITOR: All high voltage capacitors are made of NPO material, with a withstand voltage of 250V, with good accuracy and stability.3. DURABLE MAGNETIC RINGS: All magnetic rings are made of micron iron powder produced by for BASF 6000, which has ultra low loss and heat generation.4. SELF LOCKING RELAY: This automatic antenna tuner adopts excellent self locking relay, which is easy to operate, efficient and durable.5. BNC CONNECTOR: The antenna tuner has 50 BNC female connector, made of copper, with good conductivity and stable connection.Specification:Item Type: Automatic Antenna TunerMaterial: Aluminum Alloy, Iron, Copper, NPO MaterialPower: Minimum 1W, Maximum 15WScreen: 0.91in Organic Light Emitting DiodeBattery Specification: 14500 850mAh lithium battery x 2 (built in battery)Current Consumption: Working Mode: 12mAhSleep Mode: 170AShutdown State: 37A.Package List:1 x Antenna Tuner