dura MOBI Bone Conduction Speaker BT Portable Loud Stereo Sound Built-in Mic for Sound Box 1 Pack

Features:
Bone conduction speaker, a DIY sound experience, place it on different surfaces such as plastics storage box, glass, wooden desk can provide you various sound effects.
Features BT 5.0 chip supporting BT connection and True Wireless Stereo-enabled.
Quality sound effect, to 115db powerful sound volume, full bass and loud treble.
Built-in 400mAh battery, to 6 hours playing time after 1 hour fully charged.
and compact size, convenient to carry and perfect decoration.
Used as FM radio allows you to listen to , have phone conversations or conference calls, and even enjoy an fine sound experience of your playing games, videos or movies.

Specifications:
BT version: BT5.0
Audio format: MP3, AC3, AAC, WAV...
Output : 3W
Frequency response: 20-20kHz
SNR: ≥70dB
-supply: 400mAh batterys, Type-c charge DC5V/0.4A
Material: aluminum alloy
Color: black, silver, red (optional)
Qty: 1 pack, 2 pack (optional)
Package size: 
70*70*50mm/2.76*2.76*1.97in(1 pack)
145*75*50mm/5.71*2.95*1.97in(2 pack)
Package weight: 
85g/3oz(1 pack)
190g/6.7oz(2 pack)

Packing List:
Package1:
1*BT speaker
1*Lanyard
1*Suction cup
1*Adhensive
1*Type-c charge cable
Package2:
2*BT speaker
2*Lanyard
2*Suction cup
2*Adhensive
2*Type-c charge cable