Sleep Learning Drum Noise-canceling Headphones

Product Information:  

Material: ABS Sponge
Noise Reduction Rate: 27
Function: Sound Insulation
Scope of Use: Home Travel
Series: Hearing Protection
SNR: 26
NNR: 31
How to Wear: Headwear
Lining Material: Sponge
Suitable for Noise Environment: 32
Thickness of Cup Cover: 3MM