Shokz OpenRun S803 Color: Black Gray Purchased on Amazon and used once, then stored at home. Only those who understand that this is a used item, please. Thank you for viewing. SHOKZ OpenRun Mini Bone Conduction Earphones BLACK S803 ※Please refer to the images for the accessories. All items in the photos will be sent! No scratches, stains, or signs of use! This is a very good condition item that can still be used. The operation is also fine, and it works normally. Operation confirmed. Before shipping, I will clean it briefly. This is a used item, so please understand that the appearance and feel of use may vary from person to person. Only those who understand this, please. ◆Product Details◆ Bone Conduction Earphones OpenRun Mini SKZ-EP-000012 Black (Magnetic charging port) Brand: Shokz Wearing style: Both ears, integrated left and right Earphone/Headphone type: Neckband type Structure: Bone conduction Color: Black Wireless/Wired connection: Wireless Earphone/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 Sound pressure sensitivity (db): 105.0 db Wireless standard: Bluetooth Bluetooth codec: SBC IP standard (waterproof standard): IPX7 Charging time: 1.5 hours Weight (g): 26.0 g