1. USB interface powered RF low noise amplifier, convenient power interface, moderate gain, high IP3, low noise.2. Powered by USB type-C interface, built-in high PSRR LDO can effectively reduce power supply noise, and effectively reduce background noise compared with other merchants' USB direct feed modules.3. Adopting a very compact design, using a system shielding cover, it may rust when exposed to a humid environment. Please pay attention to moisture protection when using outdoors.4. Launched USB interface powered RF low noise amplifier with built-in battery.5. Reduce power consumption, suitable for portable use, more flat and consistent gain, lower background noise, smaller size, and longer battery life.DIY consumables:electricalDue to different batches, the appearance and printed text of the product may vary, which will not affect the use.Type:ZK09-BMColour:BlackMaterial:Plastic+MetalPackage Contents:1 * Low Noise Amplifier1 * USB CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.