That is not the official Shenzhen Benjie Technology storefront on AliExpress. It is a reseller that carries Benjie products, there are a lot of them on AliExpress.
So far as I can see, the BJ-T6 has only been distributed in limited quantities to resellers that bought early wholesale samples for evaluation and then are selling those one or two at a time in advance of a more general release with the expected updated firmware. I think that we will see legitimate retail market distribution of the T6 toward the end of February, if the firmware can be finalized and committed to manufacturing by then.
Here is the Shenzhen Benjie official store front (please note: wholesale only) - https://benjie-tech.en.alibaba.com/
Here is their page for the BJ-T6 (wholesale only) - https://benjie-tech.en.alibaba.com/product/60596704892-803017046/2016_Unique_HiFi_digital_music_player_with_bluetooth_function_high_quality.html
As I noted in my previous posts in the "Obscure Chinese DAPs" thread - http://www.head-fi.org/t/720512/obscure-chinese-daps,) the illustration they have for the BJ-T6 on their WWW page (http://www.benjie-tx.com/MP3HiFiPlayer/224.html) as well as in their store front is an early design rendering of the product and does not show the actual product.
Please remember that Shenzhen Benjie Technology Company (Shenzhen Ping Jie World Technology Co., Ltd) is a manufacturer and not a retailer. They do sell production samples, which is how I got my three BJ-T6 models for evaluation, but typically they sell in volume (100 - 1,000+ units per order.)