Specifications:

• With Microphone: Yes
• Function: For Internet Bar
• Waterproof: Yes
• Support Memory Card: No
• Origin: CN(Origin)
• Charging specification: USB / DC5V-350mA
• Wear mode: sports hanging ear haeadphones
• Charging Method: Batteries
• Feature 1: Bone conduction black technology
• Brand Name: CaseMe
• Volume Control: Yes
• Feature 10: Close sound (of this side)
• Wireless Type: Bluetooth
• Support APP: Yes
• Plug Type: NONE
• Model Number: Waterproof Headphones Bluetooth 5.0 Bone Conduction Wireless Head K3
• Bluetooth version: V5.0
• Wireless transmission distance: 10m
• Feature 5: True Wireless, Hi-Fi, Touch-Control
• Headphone Pads Material: SILICONE
• Item number: K3
• Features: waterproof
• Standby time: 48 hours
• Name: bone conduction headphone
• support: MP3 WMA WAV FLAC APE
• Feature 6: Ergonomics
• Frequency Response Range: 20 - 20000Hz
• Feature 3: No touching inner ears
• Feature 4: IPX8 Waterproof & Sweat-proof
• Style: Ear Hook
• Feature 8: Lightweight and portable
• Bluetooth Version: 5.0
• Vocalism Principle: Bone Conduction
• Charging time: 1-2 hours
• Feature 7: vibration diaphragm
• Play time: 6-8 hours
• Communication: Wired
• Impedance Range: up to 32 Ω
• Sensitivity: 123dB
• Built-in battery: 350 mA polymer lithium battery
• Control Button: Yes
• Is wireless: Yes
• Magnet Type: other
• Feature 2: No pain after long-time wearing
• Line Length: 0m
• Feature 9: Built in 16G memory MP3 pleyer
• Earcups Type: Open-back
• Active Noise-Cancellation: Yes
• Driver Diameter: 15.3mm
• Connectors: USB
• Total Harmonic Distortion: 1%
• Package List: User Manual