Features 【RECEIVED SHORTWAVE SIGNALS】: This active antenna module is suitable for receiving VLF LF HF shortwave signals, which is an ideal radio receiving board 【SCRATCH RESISTANT RESIN】: Made of high quality resin material, possesses impact resistance, scratch resistance, heat resistance, low temperature resistance and excellent electrical performance 【10KHZ-30MHZ FREQUENCY】: The frequency range is from 10KHz‑30MHz, the power supply range is 9‑15V. Mini design is easy to connect 【GOOD RECEIVE AND STABLE】: Come with good reception performance, which ensure stable working and easy to install, very convenient 【DURABLE AND RELIABLE】: Use high quality electronic components with precise process, ensuring fine durability and long service life 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 housing. Package List 2 x Active Antenna