Let us introduce you to OpenRun Pro - our best headphones ever. They feature improved bass, a 10-hour battery life, and a fast charge feature. The latest 9th generation of bone sound technology (called Shokz TurboPitchTM technology) and a sophisticated design. All this with our distinctive design for situational awareness and the comfortable grip you know and love. Music is meant to get you moving, and OpenRun Pro lets you do just that. Key features Services Product type Headphones Wearing style Neckband Recommended use Calls/music Product color Beige Headset type Binaural Volume control Knob control Buttons International protection class (IP code) IP55 Ports and Interfaces Transmission technology Wireless Bluetooth Yes Bluetooth profiles A2DP, AVRCP, HFP, HSP, SBC Bluetooth version 5.1 Headphone Position Headphone Speaker In-ear Headphone Frequency 20 - 20000 Hz Headphone Sensitivity 105 dB Microphone