ISOtunes PRO Industrial (No Microphone), Bluetooth Earplug Headphones, 27 dB Noise Reduction Rating, 10 Hour Battery, 79 dB Volume Limit, OSHA Compliant Bluetooth Hearing Protector (Safety Green) General Motors Its collapsible design makes it

Its collapsible design makes it easy to store when not in use

2： Keep the Multifuntion Button Pressed (about 6-8 Seconds) until LED light The Red and Blue alternately flashing and the headset Voice Prompt： Ready to pair。

High-end cirum-aural closed-back headphones

Reading lenses or myopia lenses can be accepted

Details: Audio-Technica ATH-M50xBB Studio Monitor Headphones (Limited Edition Blue)

ISOtunes PRO Industrial (No Microphone), Bluetooth Earplug Headphones, 27 dB Noise Reduction Rating, 10 Hour Battery, 79 dB Volume Limit, OSHA Compliant Bluetooth Hearing Protector (Safety Green) General Motors Its collapsible design makes itBrand: ISOtunes Color: Safety Green Features: NO MICROPHONE: Specially designed for use in environments where communication is restricted. If interested in the PRO with full functionality, please see our ISOtunes PRO model in Safety Orange or Matte Black. ANSI certified 27 dB Noise Reduction Rating (NRR) earplug headphones. This Bluetooth hearing protector is made for use in loud environments, or when noise isolation is needed most. 100% OSHA