<p>Please read the following content carefully. (4M) 2x2M Chip. Multi-system operating software can be flashed, just like a PC terminal can be installed with both iOS and operating systems at the same time, improving the playability of for UVK5 K6 intercom.</p> <p>Dual antenna solution. V5.0 (high-frequency\/audio-frequency dual amplification + dual filtering), can only change the dual antenna solution, the modification is simple (one jumper), and the anti-interference ability is stronger.</p> <p>V5.0 upgrade content:</p> <p>1. The FPC board is equipped with a high-gain, low-noise high-frequency LNA, and no antenna amplifier is required.</p> <p>2. Using the onboard interface, the board does not need to solder the feeder.</p> <p>3. The HF bandpass filter is redesigned, and a pre-selection filter is added to effectively shield external interference.</p> <p>4. Modification is simpler, only one jumper is required.</p> <p>Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use.</p> <p>Colour:Orange Chip</p> <p>Material:PCB</p> <p>Package Contents:</p> <p>1 * Module</p> <p>2 * 2M Expansion Chip</p> <p>1 * Expansion board</p> <p>1 * Accessory Kit</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>