Hummingbird Bone Conduction Speaker has the following product features:
- Name: Hummingbird Bone Conduction Speaker
- Type: Bluetooth speaker
- Connection method: Bluetooth connection
- Interface type: USB
- Battery capacity: 400 mA
- Frequency response range: 20Hz-20KHz
- Output power: 3W audio output
- Signal to noise ratio: ≥70db
- Power supply mode: built-in lithium battery
- Bluetooth protocol: 5.0
- Appearance size: 40mm
- Packing list: Speaker*1 Data cable*1 Manual*1
- Transforms anything hollow into a speaker, at any time


















Karen J. –
Smaller but sounds good in some objects