
about as loud as background music at the store because that may hurt or startle the baby. And if you're listening to music for prolonged periods, it's best to keep the volume below 50 dB (the sound level in most neonatal intensive care units).| 欢迎光临 浆糊论坛-RO小站 (http://bbs.rohome.cn/) | Powered by Discuz! 7.2 |