Features: Brand new and high quality This filter boasts low band insertion loss and steep cutoff characteristics. It's dedicated to performance optimization of 403MHz receiving equipment. It can effectively filter out-of-band signals, reduce noise, and increase dynamic range. The interior of this product is an ultra-thin PCB board, which still has excellent suppression of out-of-band remote signals, and its performance is much better than products made with only PCB boards. Uses aluminum alloy shielding for the shell, offering anti-interference, no out-of-band false responses, a compact and robust design, and ease of use. Specifications: Model: FBP-403s Impedance: 50 Ohm Center Frequency: 403 MHz 1dB Passband: 401 ~ 405 MHz Color: Silver + Gold Material: Metal Insertion Loss: Less than 2.5db (401 ~ 405 MHz) Maximum Bearing Power: 100mW (20 dBm) Size: Approx. 3.5 x 1.8 x 1.0 cm / 1.38 x 0.71 x 0.39 inches Note: Only the above package content is included; other products are not. Due to lighting and different displays, the color of the item in the picture may differ slightly from the real item. The allowed measurement error is 0-2 cm. Package Includes: 1 x Bandpass Filter