Lenovo X3 Pro Bone Conduction Wireless Bluetooth 5.3 Ear Hook-Sports Headphones
Lenovo X3 is IPX45 waterproof, Built-in Loudspeaker, Not a Bone Conduction Headphone. Lenovo X4 is IPX56 waterproof, cannot be used for swimming, no storage, Bone Conduction Headphone. Truly achieve the ideal effect of not damaging the eardrum.