Wireless Stereo In-Ear Headphones EAH-AZ100-K Black Brand: Technics Wearing Style: Separate Left and Right, Completely Independent Headphone Type: Canal Type Color: Black系 (Black-based) Wireless/Wired Connection: Wireless Headphone Features: Noise Canceling, High-Resolution Audio, Microphone, Sound Quality Adjustment, Waterproof, Splashproof, Remote Control Wireless Standard: Bluetooth Drive System: Dynamic Type Driver Size (mm): 10.0 mm Charging Port: USB Type-C, Qi Standard Charging Time: 2.0 hours Weight (g): 11.8 g