1: Small size, light weight, low insertion loss, and the center frequency is 915MHz. 2: Both sides are gold-plated SMA connectors (one side is sma female --external thread inner hole; the other side is sma male -inner thread inner needle), double-sided circuit board design, high mechanical strength, stable electrical performance. 3: It has better pass-band ripple coefficient and out-of-band suppression capability. 4: Unique shielding design, beautiful and practical. 5: SMD components with stable performance. The maximum withstand power does not exceed 1W! ! Colour:As shown Material:Aluminum alloy Size:35mm x 7mm x 6.5mm Package Contents: 1 x bandpass filter Only the above package content, other products are not included. Note: Light 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.