Brand: Audio-Technica Wearing style: Both ears, integrated left and right Headphone type: Canal type Color: Black系 (Black-based) Wireless/Wired: Wireless Headphone features: Microphone, Remote control Low-frequency response (Hz): 5 Hz High-frequency response (kHz): 35 kHz Impedance (Ω): 16 Ω Sound pressure sensitivity (db): 103 db Wireless standard: Bluetooth Bluetooth version: Bluetooth 4.1 Bluetooth codecs: aptX, AAC, SBC Drive system: Dynamic type Driver size (mm): 10.7 mm Charging terminal: MicroUSB Charging time: 3 hours Weight (g): 17 g