Features:
Practical speaker allows you to listen to , follow podcasts, have individual conversations or conference calls, and even enjoy an experience of the sound of your games, videos or films played on your device.
(Ture Stereo) supported, just turn on both speakers in same (package only include 1 speaker), then the speakers can paired each other automatically.
build-in, suggest to use function , in USB cable as well.
High sensitive microphone build-in.
made with robust aviation alloy with shine pattern.
Type-C port, the cable can be used with regular USB 5V , car USB . (not compatible )
Equipped with 3pcs vmagnetic stickers for easy attach or remove.
The versatile bone conduction speaker allows you to have a different but spectacular experience of sound anywhere.
Only 40mm in diameter, 38g in weight, slightly larger than a coin. Small size yet has large , which can reach up to 115dB.
Packing list: humbird SPEAKER, Type C cable, lanyard, re-usable glue sticker, sticker, rubber suction cup.

Specifications:
Color: Black/Red/(Optional)
Material: Metal
ver: 5.0, A2DP, HFP
Bone Conduction Transducer: 3Watt
Frequency : 120Hz - 16kHz
: 400 mAh Polymer
Item Size: 40*40*24mm
Item Weight: 38g/1.4oz
Package Weight: 156g/5.5oz
Package Size: 14.5*7.4*4.9cm

Package List: S6891B
1*Speaker
1*Lanyard
1*Type-c cable
1*Suction cup sticker
1*Sticker
3* sticker
1*Manual(English)