Fully Wireless Earphones Sound Air TW-7100 SB-WS74-MRTW/BK Urban Black Brand: GLIDiC Sound Air Wearing Style: Separate Left and Right, Completely Independent Earphone/Headphone Type: Canal Type Color: Black系 (Black-based) Wireless/Wired Connection: Wireless Earphone/Headphone Features: Microphone, External Sound Input, Waterproof, Splashproof, Remote Control Low-Frequency Response (Hz): 20.0 Hz High-Frequency Response (kHz): 20.0 kHz Impedance (Ω): 16.0 Ω Sound Pressure Sensitivity (db): 98.0 db Wireless Standard: Bluetooth Bluetooth Version: Bluetooth 5.0 Bluetooth Codec: aptX, AAC, SBC IP Rating (Waterproof Rating): IPX4 Drive System: Dynamic Type Driver Size (mm): 5.6 mm Charging Port: USB Type-C Charging Time: 1.5 hours Weight (g): 14.0 g