Zhjvihx Bone Conduction - Wireless Headphone

[Ergonomic Design] Offers firm and secure fit with good elasticity, lightweight and comfortable for long-term use without pressure on the ears or head. [Long Battery Life and Waterproof​] Offers over 20 hours of playback, suitable for outdoor activities with ip56 water . [Personalized Listening Experience] Tailored modes for various scenarios, allowing users to adjust volume, tone, and gain through a dedicated app. [Advanced Bone Conduction Technology] Delivers a unique auditory experience, providing effective hearing support for daily listening needs. [Enhanced Sound Quality] Features an independent chamber design and large power oscillators for clear and concentrated sound with no leakage. Spec: Item Type: Bone Conduction Headphones Material: PC, ABS Weight: Approx. 188g / 6.6oz ​ Version: V5.4 Connection Methods: ​, 2.4GHz Wireless Wearing Style: Neckband Principle: Bone Conduction Noise Cancellation: AI Smart Call Noise Reduction Built in Memory: 32GB ​ Frequency Response: 20Hz - 20KHz Hearing Assistance Frequency Response: F1≤230Hz, F2≥6.5KHz Maximum Output Sound Pressure (OSPL90): ≤120dB High Frequency Average Valve (OSPL): ≤105dB Full Range Sound Gain (High Frequency Average Valve): 32dB Equivalent Input Noise: ≤12dB Harmonic Distortion: ≤1% Battery Type: Li Battery (Built in) Battery Capacity: 230mAh Charging Current: 180mA Charging Time: 2 Hours Working Time: >30 Hours (Hearing Assistance Mode), >20 Hours (​ Mode) Water, Dust Proof: IP56 Rating Package List: 1 x Bone Conduction Headphones 1 x Instruction Manual 1 x Charging Cable How To Use: Use immediately after powering on.