1. compatible with 4g broadband modems mobile router, simple installation, no software required.     2. adjustments 4g modems with male sma / ts9 / crc9 per     3. Compatible list: HUAWEI B880 B310 B890 B593 B315     4. Usable indoor or outdoor to improve and maintain excellent signal quality.     5. frequency range: 791 - 821 MHz / 832 - 862 MHz / 1710 - 1785 MHz / 1805 - 1880 MHz / 2500 - 2570 MHz / 2620 - 2690 MHz.     vswr: Less than 2.5     gain: 35dbi     polarization type: vertical     radiation: omni     maximum power imput: 10w     Input impedance: 50 ohms     connector type: sma male or other     cable type: rg174 (best) 100% cooper     cable length: approx.2m / 6.56ft     installation tips:     The antenna must be mounted vertically to maximize performance     The antenna must not be mounted against metal     size:22 x 19 x 22.5cm     Material:ABS     colour:white     Package Contents:     1 x connector antenna     Only the above package content, other products are not included.     Note: Light shooting 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.