Using magnetic latching relay, after successful adjustment, the machine will 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 press TUNE (more than 5 seconds) to turn on/off, 2. Tuning: short press TUNE (about 1-2 seconds) the screen will show "TUNE" to enter tuning mode, input RF signal for tuning. 3. Clear current memory: short press TUNE (about 0.5 seconds), the screen will show: RESET: clear adjustment memory, if you continue to input RF signal, you will restart to adjust the standing wave ratio. 4. Bypass: short press TUNE, RST will appear, continue to long press 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 may vary depending on the batch, but this does not affect use) Color: As shown Material: Metal Package Contents: 1 x Antenna Tuner