Overview:
Using innovative bone conduction technology, the headphone conducts the speaker through the bone and transmits sound to the bone near the external canal, then to the auditory nerve, giving your healthy listening. IPX8 waterproof and light-weight design immerse you in sports and music, suitable for swimming, walking, hiking, running, climbing and other activities. With 8GB independent memory, it supports MP3 playback mode, and can also switch to BT playback mode.

Features:
Bone Conduction Design:
The sound transmits through the bone to the auditory nerve, no need to put into the ear, no eardrum damage, good for the user to avoid ear disease and hearing losing.
MP3 Playing Mode: 
Built-in 8GB memory capacity, you can download the music you like to this headphone via data transfer cable and able to enjoy music through MP3 play mode.
BT 5.0 Connection:
BT 5.0 ensures high data transfer speed, stable connection, and low power consumption. Free to enjoy hands-free calls or BT music via BT connection.
Born for Sports:
IPX8 waterproof and 30g light-weight design immerse you in sports and music, suitable for swimming, walking, hiking, running, climbing, skating, driving, etc.
Long Battery Life:
280mAh rechargeable Lithium battery provides 8-10 hours of playback time (at 50% volume) on one full charge and the charging time is about 2 hours.

Specifications:
Model Number: Q50
BT Version: 5.0
Operation range: Up to 10 meters (no obstacle)
Drive Unit: 11.2mm
Frequency Range: 20-20KHz
Mic Sensitivity: -42dB
Battery Capacity: 280mAh
Music Playing Time: 8-10 hours (depends on music volume)
Charging Time: about 2 hours
Memory Capacity: 8GB
Music Format: WAV, FLAC, APE, MP3, WMA
Color: Black, Blue, Red (Optional)
Main Item Size: Approx. 13.5*10.5*4.2cm/5.31*4.13*1.65in
Main Item Weight: Approx. 30g/1.05oz
Package Size: Approx. 16.2*12.0*5.7cm/6.37*4.72*2.24in
Package Weight: Approx. 201g/7.09oz

Package List:   
1 * Bone Conduction Headphone
1 * Charging Cable
1 * Set of Swimming Accessory 
1 * User Manual