For over 25 years Walker&';s has developed innovative solutions for hearing protection & enhancement. The Walker&';s line of products are widely considered the industry standard for shooting protection and safety.Features : Touch Surface Controls Hi Performance Sac (Sound Activated Compression) 3X Microphones Per Earbud For Directional Sound Dynamic Speakers For Enhanced Audio Output Bluetooth 5.3 + Ble Led Battery Level Readout On Case Wireless Charging Case Or Via USB-C Cable Device Management Through The Walkers Link App