1. Use the magnetic ring of Micrometals; 2. High launch efficiency: 80 m/60 m/40 m/30 m/20 m can be adjusted to more than 80%; 3. The TX efficiency is 5-6W at 12V input and not more than 6.5W at 13.8V input. The magnetic loop winding can be adjusted; 4. RX noise (above - 106dBm) is the products on the market; RX error sideband suppression is more than 30dB; 5. Harmonic suppression - 43dB or better; 6. New appearance design, the upper and lower cover plates use PCB, the font is clearer, the size is adjusted by the structural engineer, and the assembly space is even and beautiful; 7. Optimize PCB board, reduce the possibility of false soldering, and have a higher service life; 8. The display accuracy such as efficiency and standing wave ratio is optimized, and the data is more reliable. Colour:black Material:plastic Package Contents: 1 x usdx Transceiver 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.