SHOKZ Bone Conduction Headphones OpenRun Pro 2 Used item. Operation confirmed. There are no noticeable scratches or stains. All accessories are shown in the photos. Thank you. Brand: Shokz Wearing style: Both ears, integrated left and right Headphone type: Neckband type Structure: Bone conduction Color: Black系 (Black-based) Wireless/Wired connection: Wireless Headphone features: Microphone, sound quality adjustment, waterproof, splash-proof, remote control Low-frequency range (Hz): 20.0 Hz High-frequency range (kHz): 20.0 kHz Wireless standard: Bluetooth Bluetooth codec: SBC IP rating (waterproof rating): IPX5 Charging port: USB Type-C Charging time: 1.0 hour Weight (g): 30.3 g