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.<br> 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.<br> V5.0 upgrade content:<br> 1. The FPC board is equipped with a high-gain, low-noise high-frequency LNA, and no antenna amplifier is required.<br> 2. Using the onboard IPEX interface, the board does not need to solder the feeder.<br> 3. The HF bandpass filter is redesigned, and a pre-selection filter is added to effectively shield external interference.<br> 4. Modification is simpler, only one jumper is required.<br> Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use.<br> Colour:Orange Chip<br> Material:PCB<br> Package Contents:<br> 1 * Module<br> 2 * 2M Expansion Chip<br> 1 * Expansion board<br> 1 * Accessory Kit<br> 1 * Antenna<br> 1 * USB programming cable<br> Only the above package content, other products are not included.<br> 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.