1. Using high-quality materials, the quality is guaranteed 2. This filter has a 1dB bandwidth of 4MHz and a steep cut-off characteristic 3. Performance optimization for 868MHz RFID receivers and European standard LoRa IoT node devices, which can effectively filter out out-of-band signals, reduce noise, and increase dynamic range 4. Small and beautiful appearance 5. Easy to use and widely used Impedance:50 Ohms Center frequency:868 MHz Passband (1dB bandwidth):866 to 870 MHz In-band insertion loss:Less than 3.5 dB Maximum Carrying Power:100 mW (20 dBm) Interface:SMA-M, SMA-F Frequency response diagram (marked as 3dB bandwidth, sweep center frequency: 868MHz, blue line span: 100MHz, vertical scale: 10dB per division) Different factory batches may have different appearance labels, which will not affect the use of the product Colour:As Shown Material:Metal Package Contents: 1 * Bandpass Filter Only 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.