Wireless Headphones ATH-HL7BT Brand: Audio-Technica Structure: Open-air Wearing style: Both ears, integrated left and right Earphone/Headphone type: Headband type Color: Black系 (Black-based) Earphone/Headphone features: Microphone, sound quality adjustment, remote control Low-frequency response (Hz): 5 Hz High-frequency response (kHz): 40 kHz Bluetooth version: Bluetooth 5.0 Bluetooth codecs: LDAC, AAC, SBC Wireless/Wired connection: Wireless, wired connection Driving method: Dynamic type Plug shape: Mini plug Impedance (Ω): 48 Ω Sound pressure sensitivity (dB): 100 dB Wireless standard: Bluetooth Charging port: USB Type-C Charging time: 1.5 hours Weight (g): 220 g Brand new, unopened. Payments made on Fridays, Saturdays, Sundays, and holidays will not be shipped immediately. The outer box will be wrapped in air-cushion packaging and shipped as is. Do not purchase immediately.