Docooler Bone Conduction Speaker, Mini True Wireless Speakers Wirelessly Sound Creative Portable Speaker Loud Stereo Sound Built-in Mic, 1 Pack

Specifications:
Audio format: MP3, AC3, AAC, WAV...
Output power: 3W
Frequency response: 20-20kHz
SNR: ≥70d-B
Power-supply: 400mAh lithium batterys, Type-c charging 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* speaker
1*Lanyard
1*Suction cup
1*Adhensive
1*Type-c charging cable
Package2:
2* speaker
2*Lanyard
2*Suction cup
2*Adhensive
2*Type-c charging cable