Using magnetic latching relay, after successful adjustment, the machine automatically shut down without any operation. This can maintain the current adjusted state and reduce power consumption Screen sleep: about 5 minutes, automatic shutdown after 30 minutes Tuning power: 1W-15W Tuning start SWR: 1.3 Automatic measurement and adjustment mode,Used power: 15W (please reduce the power usage by 50% in digital mode) Function operation:1. Power on: long TUNE (more than 5 seconds) to turn on/off, 2. Tuning: short TUNE (about 1-2 seconds) the screen show "TUNE" to enter tuning mode, input signal for tuning. 3. Clear current memory: short TUNE (about 0.5 seconds), the screen show: RESET: clear adjustment memory, if you continue to input signal, you restart to adjust the standing wave ratio. 4. Bypass: short TUNE, appear, continue to long until it turns off. Interface description: Front CTRL, using a standard 3-core audio cable, can be connected to IC-705 for automatic control (The product appearance and printed words depending on the batch, but this does not affect use) Color: As shown Material: Metal Package Contents: 1 x Antenna Tuner 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.