Earmuff Outdoor Noise Reduction Electronic Headphones Without Battery green

Description

Product category:  earmuffs
Product weight: about 1 pound
Product size: about 11 * 10 * 4CM (single earplug)
Battery type: 2 AAA batteries (not included)
Material: ABS plastic
Energy: battery powered
Sound level: 24 decibels
Measurement system: English/standard
Special function noise reduction level (NRR): 22 decibels
Usage: passive protection
Including components: impact sports earmuffs, 3.5 audio connection;
Whether to include battery: no
Average battery life: about 350 hours
Content:
1 * Noise-proof Earmuff
1 * 3.5MM Audio Cable
1 * Instruction Manual
Note: 1. Please note that it requires 2 AAA batteries, not included. 2. Please allow small errors caused by manual measurement. thank you for understanding