You may have seen someone using a Bluetooth headphone adapter to interact with a mobile phone without wires, or perhaps you are a living testament to the phenomenon yourself.

您可能见过某人使用蓝牙耳麦适配器与移动电话进行无线交互，或者您本身就就使用过这样的技术。

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Placed inside the blister we find the headphone, an extension cable, a ?" > 1/8" adapter, a small user manual and a small blue towel to clean the phones, everything neatly arranged.

盒子里面整齐的摆放着一根延长线、一个转换插头，一本使用手册和一块用来清洁耳机的蓝色软布。

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Ericsson made some interesting accessories for the T28, like the "CHA-10 Chatboard" (a QWERTY keyboard for text messaging), the "MP3 hands-free kit HPM-10" (an MP3 player with an MMC card slot and standard 3.5mm headphone jack) and the aforementioned "Bluetooth phone adapter DBA-10".

ENGADGET: Ericsson T28z review Mobile

Measuring at 6.93mm thick (instead of the rumored 6.13mm), we're surprised that Oppo didn't set this to be the follow-up to the Finder: sure, it's 0.28mm thicker, but it also aces the latter with a 4.7-inch 720p in-cell display, a 1.2GHz quad-core chip with 1GB RAM (likely MediaTek's Cortex-A7-based MT6589 SoC), Android 4.2 and a sorely missed 3.5mm headphone jack -- so no micro-USB adapter required.

ENGADGET: Oppo's 4.7-inch, 6.93mm-thick R809T pays homage to the Finder