B21 Wireless Earphone IPX8 Waterproof Bluetooth-compatible 5.0 Ear Hook Bone Conduction Headphone 32 GB MP3 Music Player for Swimming-Black

Description:
With excellent IPX8 grade waterproof performance, this earphone can still keep normal operation under the water.
Featuring bone conduction design, this earphone can efficiently reduce the harm to eardrum and bring you comfortable wearing experience.
Using high-quality ABS material, this product is lightweight and durable to use.
The length of this product is 15.8cm, the width is 10cm, and the height is 3.5cm.
It is suitable for swimming, diving, running, sports, fitness, etc. This earphone is also a nice MP3 player, and you need not to buy extra TF card because it has 32G large memory space for you to store thousands of music. In addition, the opening design of the earphone enables you to pay attention to surrounding voice while listening to music, which can efficiently ensure your safety.

Item Name: Bone Conduction Headphone
Material: ABS
Model: B21
Color: Black
Bluetooth-compatible Version: 5.0
Transmission Distance: 10m (Barrier Free)
Bluetooth-compatible Chip: ATS2825C
Supported Protocols: A2DP V1.3, AVRCP V1.5, HFP V1.6, HSP V1.2
Audio Format: WMA, FLAC, MP3
Operating Frequency: 20Hz-20khz
Battery Capacity: Built-in 200mAh Rechargeable Battery (Included)
Standby Time: 120 Hours
Charging Time: 1.5 Hours
Music Time: 8 Hours
Talk Time: 10 Hours
Waterproof Grade: IPX8
Charging Interface: Magnetic Suction
Earphone Type: Bone Conduction
Memory: 32 GB
Features: IPX8 Waterproof, HiFi Sound, Bone Conduction
Size Details:
15.8cm x 10cm x 3.5cm/6.22" x 3.94" x 1.38" (Approx.)

Notes:
Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.

Package Includes:
1 x Bone Conduction Headphone
1 x Charging Cable
1 x User Manual