Upgraded version, with Bluetooth! (4M) 2X2M Expansion Chip Multi-system operating software can be flashed, just like a PC terminal can be installed with both for iOS and operating systems at the same time, improving the playability of for UVK5 K6 intercom. For UV-K5 UV-K6 SI4732 Modification Bluetooth Stereo Transmission Module! The item only the upgraded module for UV-K5 K6, not include the machine. Thank you! The appearance and color of the product from batch to batch. We do not accept the specified appearance and color, which not affect the use Colour:Orange&Yellow Material:PCB Package Contents: 1 x SI4732 Module Kit 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.