Some thoughts about the sales of FiiO M11Pro on Amazon. Dear customers and FiiO’s fans, today we received a notice from Amazon saying that our M11Pro's return rate is too high and we need to temporarily remove it from the shelf (the first batch of only 20pcs M11PRO on Amazon in the United States but with 5 returns). After investigation and tests, it is a pity that these five M11Pro have no quality problems. Reasons for return include: 1, battery life is too short (M11Pro playback time, because of the use of the AK4497 with a large power consumption, etc. is only about 10 hours). 2.Overheating (the same as previous one), and not Bluetooth 5.0 version (This is because of the Samsung Soc platform, however, Bluetooth 5.0 does not have any improvement for audio transmission, no matter the transmission quality and transmission distance will not be improved because of Bluetooth 5.0). These problems are not really product quality problems or design problems. If you are familiar with such products, you might be familiar with that. High-end HIFI players, in order to get the best sound quality, often need to use high-quality devices with high power consumption, therefore, normally has shorter battery life. Heat is also normal phenomenon. Compared to many products on the market, the battery life and heating control of the M11Pro is relatively good. We understand and respect the rights of customers, but here I’m still pleading, if you lack experience or knowledge of high-end portable products, please do not buy them easily in order to avoid returning the product because it does not meet your expectations, it will cause unnecessary losses to both of us. At the same time, for the future high-end models, in order to avoid similar situations, we will consider the new way of selling them. Thanks for your understanding!