Description Designed for protecting your hearing, this noise cancelling headphone protects your ear during sleeping and studying. Made of premium plastic material for long time and durable use. It has a simple design, but very practical in use, can be good gift choice for your friends, they will like it. Features - Color: Light green. - Material: ABS. - Size: 15.00X15.00X7.50cm/5.89X5.89X2.95inch. - Note: noise reduction rate is 28. - While protecting the human ear from sound damage, useful and excellent, simple to use. - High-grade material, flexibility and excellent durability, easy to use, for long service life. - Lightweight and portable, it is very convenient for you to carry with in everywhere you like. - Excellent performance, good noise reduction effect, protective and practical for kids and children. - Adjustable and flexible, good hand feeling, comfortable and simple to wear when sleeping and studying. While protecting the human ear from sound damage, useful and excellent, simple to use. High-grade material, flexibility and excellent durability, easy to use, for long service life. Lightweight and portable, it is very convenient for you to carry with in everywhere you like. Excellent performance, good ​noise reduction effect, protective and practical for kids and children. Adjustable and flexible, good hand feeling, comfortable and simple to wear when sleeping and studying.​