Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Please read the following content carefully. Dual antenna solution. V5.0 (high-frequency/audio-frequency dual amplification and dual filtering), can only change the dual antenna solution, the modification is simple (one jumper), and the anti-interference ability is stronger. V5.0 upgrade content: 1. The FPC board is equipped with a high-gain, low-noise high-frequency LNA, and no antenna amplifier is required. 2. Using the onboard interface, the board does not need to solder the feeder. 3. The HF bandpass filter is redesigned, and a pre-selection filter is added to effectively shield external interference. 4. Modification is simpler, only one jumper is required. Colour:Orange Chip Material:PCB Package Contents: 1 x Module 1 x 2M Expansion Chip 1 x USB Programming Cable 1 x Accessory Kit 1 x Antenna 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.