锂电池

lù yīn bǐ li de diàn chí shì lǐ diàn chí kě yǐ suí shí gēng huàn shǐ yòng

录音笔里的电池是锂电池，可以随时更换使用。

The internal battery of the recorder pen is lithium battery can be charged and used anytime.