X9plus:
Pick up and connect (auto pairing and connection)
Intelligent noise reduction (shocking panoramic sound quality)
Headphones adjust volume
3500mAh charging bay (can charge mobile phones)
Waterproof and dustproof (PX7 grade waterproof and dustproof)
Headphone switch music (switch up and down)

X9:
Pick up and connect (automatic pairing and connection)
Intelligent noise reduction (shocking panoramic sound quality)
Headphones adjust volume
700mAh charging bay (long battery life)
Waterproof and dustproof (IPX7 waterproof and dustproof)

Headphone switch music (switch up and down)

Channel: 2

Bluetooth version: 5.0