OpenRun SKZ-EP-000003 Bone Conduction Headphones - Black (Magnetic Charging Port) Brand: Shokz Wearing Style: Both ears, integrated left and right Headphone Type: Neckband Structure: Bone conduction Color: Black Wireless/Wired Connection: Wireless Headphone Features: Microphone, Waterproof, Splashproof, Remote control Low-Frequency Response (Hz): 20.0 Hz High-Frequency Response (kHz): 20.0 kHz Sound Pressure Sensitivity (dB): 105.0 dB Wireless Standard: Bluetooth Bluetooth Codec: SBC IP Rating (Waterproof Rating): IPX7 Charging Time: 1.5 hours Weight (g): 26.0 g Purchase date unknown, everything in the photos is included. Also, there are scratches and dirt. Operation confirmed (charging, pairing, music, phone calls), but the multi-function button is broken and does not function (play/pause music, answer/end calls, etc.) when pressed. Please be aware of this. Please purchase with your understanding.