Please note :
1.The headphones of VIRUTUO and VIRTUOSO SE are divided into old version firmware and new version firmware!
2.Old firmware versions of headphones (V.0.X.X) must match the old firmware receiver (V.0.X.X)! The receivers between headphones of different colors are not compatible with each other! You must choose the correct color option to place an order. If you choose the wrong color option, you will not be able to match your headphones
3.The new firmware version of headphones (V.5. X. X) must match the receiver of the new firmware version (V.5. X. X), and the receivers corresponding to different colored headphones can be compatible with each other!