NGS Towerbridge 2.0 vs Trust Sphere Notebook Speaker

Comparison of Towerbridge 2.0, Sphere Notebook Speaker

18 specifications	A NGS Towerbridge 2.0View product	B Trust Sphere Notebook SpeakerView product
Loudspeakersidentical
Audio output channels	2.0 channels	2.0 channels
Audioidentical
RMS rated powerKnown for one	4 W	—Unknown — not stated by the source
Performance1 differ
Product colourDiffers	Black	Silver
On/off switchKnown for one	Yes	—Unknown — not stated by the source
Plug and PlayKnown for one	—Unknown — not stated by the source	Yes
Ports & interfacesidentical
Headphone connectivityKnown for one	3.5 mm	—Unknown — not stated by the source
Connectivity technologyKnown for one	—Unknown — not stated by the source	Wired
3.5 mm connectorKnown for one	—Unknown — not stated by the source	Yes
Poweridentical
Power source type	USB	USB
Weight & dimensions1 differ
WeightDiffers	535 g	358 g
Other featuresidentical
TypeKnown for one	Portable speakers	—Unknown — not stated by the source
Number of satellite speakersKnown for one	2	—Unknown — not stated by the source
Satellite speaker frequency rangeKnown for one	120 - 17000 Hz	—Unknown — not stated by the source
Satellite speakers RMS powerKnown for one	4 W	—Unknown — not stated by the source
SpeakersKnown for one	2	—Unknown — not stated by the source
Minimum system requirementsKnown for one	—Unknown — not stated by the source	3.5 mm audio connection. USB port (for power).
ContentsKnown for one	—Unknown — not stated by the source	Speaker set. User's guide.
Packaging dataidentical
Package dimensions (WxDxH)Known for one	—Unknown — not stated by the source	140 x 85 x 130 mm

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.