Sprinklers evenly cover a wide area, but a downside is that they're not very precise.

喷头均匀覆盖范围广，但缺点是他们不是非常精确。

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Characteristic: wide Angle design. cover a wider range of area. Structure design, enhancement of vibration and impact resistance. Directly grounded.

特点：广角设计，覆盖的范围广，结构的设计，提升振动和抗冲击性，直接接地。

youdao

As the vibrations cover a wide area of the screen, the user is able to hear clear voice quality regardless of which part of the ear they place the device on.

ENGADGET: Kyocera announces Digno S smartphone for Japan, promises over 18 hours of talk time in three colors