Bone Conduction Speaker Hummingbird Speaker Bone Conduction Audio Speaker Bluetooth TWS Wireless Audio Color:Black 4PC The content of main fabric

The content of main fabric ingredient 2: 71%-80%

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Memory card type: Support Micro SD card up to 64GB

Product style 2 means there are two battery quantities

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Bone Conduction Speaker Hummingbird Speaker Bone Conduction Audio Speaker Bluetooth TWS Wireless Audio Color:Black 4PC The content of main fabricOverview: 1. Humbird Speaker is the worlds smallest and most versatile bone conduction speaker that allows you to have a different but always spectacular experience of sound anywhere, in any context. Transforms anything hollow Into a speaker, at any time. 2. We highly recommend you to use two Humbird Speakers interconnected, you can have a Surround Sound 2. 0 experience since this innovative Bluetooth enabled device is also TWS enabled. 3. Humbird