Pen Sound

2258 pen sound products are offered for sale by suppliers on Alibaba.com, of which learning machines accounts for 21%, digital voice recorders accounts for 11%, and quran players accounts for 1%. A wide variety of pen sound options are available to you, such as wav, mp3 and rec.You can also choose from portable, voice activated and rechargeable pen sound,As well as from lithium battery, built-in lithium battery pen sound, and whether pen sound is 8gb, > 4gb, or 16g.