Feature: 1. DURABLE AND RELIABLE: Adopt quality electronic components with accuracy process, which ensures fine durability and long service life 2. GOOD RECEPTION AND STABLE: Come with good reception performance, which ensure stable working and easy to install, very convenient 3. RECEIVE SHORTWAVE SIGNALS: This active antenna module is suitable for receiving VLF LF HF shortwave signals, which is an ideal radio receiver board 4. SCRATCH RESISTANT RESIN: Made of good quality resin material, possess impact resistance, scratch resistance, heat resistance, low temperature resistance and excellent electrical performance 5. 10KHZ‑30MHZ FREQUENCY: Operating frequency range is from 10KHz‑30MHz, power supply range is 9‑15V. Mini design is easy to connect Specification: Item Type: Active Antenna Material: Resin Voltage: 9-15V Current: 90mA Frequency Range: 10 KHz - 30 MHz. Package List: 2 x Active Antenna Note: Outdoor use, do not use metal casing.