Thanks for advice. Just bought a Benjie X5 recently. Resume works and it can handle 8 bookmarks. That's all what I need :) X5 has decent sound too. Better than my S5.

Hi! Can anyone tell me if X6 has breakpoint resume function on sd card or not. I looking for an inexpensive player for my audiobooks. X6 looks nice :)

Mine was identical with this one: http://player.ru/showthread.php?t=200014 Cutting high frequencies was also present. I really hate it. Than I tried to sell it. Who bought it broke the buttons within an hour :)

Maybe it has more variants like Mrobo C5? I bought here: https://www.aliexpress.com/item/Yescool-C50-Professional-HIFI-Stereo-Lossless-MP3-Player-Audiophile-Full-format-decoding-Support-128GB-TF-card/32837324364.html?spm=a2g0s.9042311.0.0.GNREAa

Amoi C50 is one of the worst player I ever had. It has terrible sound quality. Even cheap smartphones sounds better. After a week all side buttons are broken. I sent it back to china. Now I using a Benjie T1 instead which is also not a favorite in this forum. Still T1 is many classes above C50.

Benjie T1 has very similar hardware. Firmware looks the same too.