The Wilson Electronics Cell Phone Booster Magnet Antenna is a used accessory designed to boost cellular signal. This sale is only for an antenna; you will need a booster device for the antenna to attach to. The antenna is 12 inches in height and features a magnetic mounting type. The antenna has a SMA male connector.

• Omni-directional cellular antenna
• Works with vehicle and IoT signal boosters
• High-gain roof antenna
• Up to +6.1 dB gain

https://www.wilsonamplifiers.com/wilson-12-inch-magnet-mount-antennas/?sku=WA311125&gad_source=1&gclid=EAIaIQobChMIi5HC0YLUhQMVFUtHAR0AIgHmEAAYASAAEgJTc_D_BwE