What's in the box:

Mini-Whip 10KHz-30MHz 2Pcs Medium and Shortwave RTL-SDR Active Antenna System Radio Receiver Electronic Component (Standard)

MiniWhip amplifies the signal of the potential difference between the small metal plate and the ground, and then transmits it to the receiver through the core wire and shielding layer of the coaxial cable after amplification.

Features:
Adopts quality electronic components, with accuracy process, which ensures fine durability and long service time.
Superior multilayer PCB design, large area cooling metal.
Fine contact performance, that ensure stable working.
Mini design, SMA female output interface, which is easy to connect.
The operating frequency-range is 10KHz-30MHz.
The powersupply-range is DC9-15V Typical 12V, and the maximum output power is more than -15dBm.
Built-in circuit-protection can make sure that the operation is much safer.

Specifications:
Name: Active Antenna
Material: PCB board
Operating frequency-range: 10KHz-30MHz
Powersupply-range: DC9-15V, typical 12V
Maximum output power: >-15dBm
Output interface: SMA female interface
Item size:
Big: 113 * 32 * 7mm / 4.45 * 1.26 * 0.28in
Small: 60 * 23 * 7mm / 2.36 * 0.91 * 0.28in
Item weight: 37g / 1.31ounce
Package size: 130 * 80 * 10mm / 5.12 * 3.15 * 0.39in
Package weight: 41g / 1.45ounce

Packing List:
2 * Active Antenna