With directional sound field technology, it can improve the noise blocking effect by 37%. This baby sound machine is a must-have for every family. 𝗖𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗮𝗯𝗹𝗲 𝗕𝗹𝘂𝗲𝘁𝗼𝗼𝘁𝗵 𝗙𝘂𝗻𝗰𝘁𝗶𝗼𝗻: The CHICWAY white noise for sleeping machine features optional Bluetooth functionality.
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