10K-6GHz Full Band Low Noise Amplifier LNA Module 20dB High Gain Power Preamplifier with SMA Female Connector Low Noise Gain Block Amplifier RF Amplifier Module for RF & Software Defined Radio (SDR). Feature: High Performance, Long Battery Life, Wide Frequency Range, Stable Design, Easy Connectivity. Specification: Origin Mainland China, DIY Supplies ELECTRICAL, Battery capacity 600mah, Shell material ABS, Product size about 49.00x45.00x19.00mm.