iKF Odin Bone Conduction Earhook Wireless Bluetooth Headset Waterproof for Workout, Running, Gym, Hiking, Cycling

BONE GUIDE HEADPHONES MADE FOR EXERCISERS"True" bone conduction is open to listening, vibrator vibration causes skull resonance, and the sound source is directly transmitted to the auditory nerve.Inside: Listen to a dynamic music you love;Outside: Sense the changes in the surrounding environment and protect your sports safety.IP68 RATEDIP68 dustproof and waterproof, using nano waterproof coating, fully enclosed sound-free structure, calmly isolate everything, and release your sports passion in the pool. Built-in NTC circuit protection to protect your every safety.SECOND-GENERATION ACOUSTIC TECHNOLOGYThe new and original second-generation JF-Acoustics analog acoustic enhancement technology, professional tuning technology solves the problem of poor listening quality of bone guide headphones from the root, brings better sound field performance, rich low frequency, delicate middle frequency, high frequency transparency.TOROIDAL ACOUSTIC VIBRATORInnovative ring-shaped energy-saving sound tr