From the discussion forum of the Chinese smartphone:

Yitzhaken: Hello to everyone. Eat a few questions. I wanted to buy this phone a few days ago and a few questions arose. How about 3G? ordinary phones I have with 2 SIMCAMIA in one for 3GI second normal communication and here as the norm with speed? I usually have a PD (data transmission) 200-300 showing loading. What software is installed immediately and is it a lot? Do you hear the interlocutor loudly? Is it as loud as listening to music?

Abyrvalg: The phone is great, but on the mind; the communication holds great, but always in search; for excess speed, the receipts with a fine have often come. Soft sea, so Microsoft is crying. When the interlocutor speaks, it sounds great, but you have to listen. The dynamic beast - the local cries that he had to listen to the complaints of the neighbors about loud music. The display is very bright! At night, you have to apply raw carrot to the eyes - the eyes hurt, as after electrical welding. Satellites catch healthy, the ISS has repeatedly called to turn off the railway - they have all the equipment phonized.
They borrowed. There is search.