Brand: AVIOT Wearing style: Separate left and right, completely independent Headphone type: Canal type Color: Navy Wireless/Wired connection: Wireless Headphone features: Microphone, External sound capture, Sound quality adjustment, Waterproof, Splash-proof, Remote control Impedance (Ω): 16 Ω Sound pressure sensitivity (db): 90 db Wireless standard: Bluetooth Wireless features: TWS Plus, Multi-pairing Bluetooth version: Bluetooth 5.0 Bluetooth codecs: aptX, AAC, SBC IP standard (waterproof standard): IPX5 Drive system: Dynamic type Driver size (mm): 6 mm Charging terminal: USB Type-C Charging time: 2 hours We do not handle initial defects or malfunctions! Please contact the manufacturer directly!