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The refurbishing process includes functionality testing, basic cleaning, a minimum 90-day warranty, and repackaging. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.





1. Harman Kardon
#ad
100, Harman Kardon Onyx Studio 4 Wireless Bluetooth Speaker Black New Model
#adHarman Kardon #ad - Stream music wirelessly via bluetooth to enjoy room-filling sound. Amplify your listening experience by wirelessly connecting more than 100 HK connect+ enabled speakers. This can be easily configured via the HK connect app. The superior fabric and finishing combines with iconic design to compliment any style.More information #ad
Connect up to 2 smart devices at the same time and take turns playing music. The rechargeable battery supports up to 8 hours of playtime. Signal to noise ratio: 80dB A-weighted. Access siri or google now from the speaker with a simple button press.Brand | Harman Kardon #ad |
Manufacturer | Harman Kardon #ad |
Height | 8.5 Inches |
Length | 13 Inches |
Weight | 4.54 Pounds |
Width | 12.5 Inches |
Part Number | HKOS4BLKBSG |
Model | HKOS4BLKBSG |
Warranty | 1 year limited warranty |
More information #ad
2. Harman Kardon
#ad
Harman Kardon Onyx Studio 4 Wireless Bluetooth Speaker White New Model
#adHarman Kardon #ad - The superior fabric and finishing combines with iconic design to compliment any style. Stream music wirelessly via bluetooth to enjoy room-filling sound. Amplify your listening experience by wirelessly connecting more than 100 HK connect+ enabled speakers.More information #ad
This can be easily configured via the HK connect app. Access siri or google now from the speaker with a simple button press. Connect up to 2 smart devices at the same time and take turns playing music. The rechargeable battery supports up to 8 hours of playtime.Brand | Harman Kardon #ad |
Manufacturer | Harman Kardon #ad |
Height | 11 Inches |
Length | 10.3 Inches |
Weight | 4.54 Pounds |
Width | 6.3 Inches |
Part Number | HKOS4WHTBSG |
Model | HKOS4WHTBSG |
Warranty | 1 year limited warranty |
More information #ad
3. Harman Kardon
#ad
Black, Harman Kardon Onyx Studio 4 Wireless Bluetooth Speaker
#adHarman Kardon #ad - Hk connect+. 8 hours of playtime. Power source type: Battery Powered. Built-in Microphone Conferencing System. Voice Integration.More information #ad
Output wattage: 600 watts. Wireless Bluetooth Streaming. Included components: 1 x harman kardon onyx studio 4, 1 x Quick start guide, 1 x Power adaptor, 1 x Safety sheet, 1 x Warranty card.Brand | Harman Kardon #ad |
Manufacturer | Harman Kardan #ad |
Height | 10.94 Inches |
Length | 10.24 Inches |
Weight | 4.54 Pounds |
Width | 6.28 Inches |
Part Number | Onyx Studio 4 Portable Bluetooth |
Model | HKOS4BLKAM |
Warranty | 1 year manufacturer |
More information #ad
4. Harman Kardon
#ad
Renewed, Harman Kardon Onyx Studio 4 Wireless Portable Speaker HKOS4BLKAM Black
#adHarman Kardon #ad - Amplify your listening experience by wirelessly connecting more than 100 HK Connect+ enabled speakers. The rechargeable battery supports up to 8 hours of playtime. Stream music wirelessly via bluetooth to enjoy room-filling sound.The refurbishing process includes functionality testing, basic cleaning, a minimum 90-day warranty, and repackaging. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.
More information #ad
Com. Connect up to 2 smart devices at the same time and take turns playing music. This can be easily configured via the HK Connect App. Access siri or google now from the speaker with a simple button press. This certified refurbished product is tested and certified to look and work like new. The product ships with all relevant accessories, inspection, and may arrive in a generic box.Brand | Harman Kardon #ad |
Manufacturer | Harman Kardon #ad |
Height | 8.5 Inches |
Length | 13 Inches |
Width | 12.5 Inches |
Part Number | HKOS4BLKAM |
Model | HKOS4BLKAM |
Warranty | 90 days limited warranty |
More information #ad
5. Harman Kardon
#ad
Harman Kardon Onyx Studio 4 Wireless Bluetooth Speaker Blue New Model
#adHarman Kardon #ad - Amplify your listening experience by wirelessly connecting more than 100 HK Connect+ enabled speakers. Stream music wirelessly via bluetooth to enjoy room-filling sound. The superior fabric and finishing combines with iconic design to compliment any style.More information #ad
Access siri or google now from the speaker with a simple button press. Connect up to 2 smart devices at the same time and take turns playing music. The rechargeable battery supports up to 8 hours of playtime. This can be easily configured via the HK Connect App.Brand | Harman Kardon #ad |
Manufacturer | Harman Kardon #ad |
Height | 11 Inches |
Length | 10.3 Inches |
Weight | 4.5 Pounds |
Width | 6.3 Inches |
Part Number | HKOS4BLUBSG |
Model | HKOS4BLUBSG |
More information #ad
6. Harman Kardon
#ad
Black HKOS6BLKAM, Bluetooth Speaker with Handle, Harman Kardon Onyx Studio 6
#adHarman Kardon #ad - 8 hours of playtime. Premium materials with integrated aluminum handle. Connect two onyx studio 6 for wireless dual sound. Ipx7 waterproof. Wireless bluetooth streaming.More information #ad
Brand | Harman Kardon #ad |
Manufacturer | Harman Kardon #ad |
Height | 12.36 Inches |
Length | 12.58 Inches |
Weight | 6.5 Pounds |
Width | 7.11 Inches |
Part Number | HKOS6BLKAM |
Model | HKOS6BLKAM |
Warranty | 1 year manufacturer |
More information #ad
7. Harman Kardon
#ad
Harman Kardon Onyx Wireless Speaker System with Rechargeable Battery
#adHarman Kardon #ad - Numerous wireless connectivity options including Bluetooth with NFC, AirPlay for Apple and DLNA for Android and Windows. Four drivers and dual passive radiators deliver incredible sound. Built-in, rechargeable battery delivers up to 6 hours of playback while letting you enjoy your music anywhere you like, Power Requirement: 4 x 15W.More information #ad
Sophisticated and elegant design uses premium materials like stainless steel and real leather. Optional harman kardon Remote app makes connecting your device easy while giving you complete control over the audio settings.Brand | Harman Kardon #ad |
Manufacturer | Harman Kardon #ad |
Height | 12.8 Inches |
Length | 13.6 Inches |
Weight | 6.61 Pounds |
Width | 8.8 Inches |
Part Number | HKONYXWHTEU |
Model | HKONYXWHTEU |
More information #ad
8. Harman Kardon
#ad
Harman Kardon Onyx Studio Wireless Bluetooth Speaker with rechargeable battery
#adHarman Kardon #ad - Bluetooth Wireless Connection. Premium Harman Karden Design. Deep bass from dual passive radiators Amazing audio performace delivering authentic sound.More information #ad
Built-in rechargeable battery upto 5 hours playtime and gives you the convience of playing music anywhere at your home. Technical specification: 4x15w Frequency response60hz-20khz.Brand | Harman Kardon #ad |
Manufacturer | Harman Kardon #ad |
Height | 6.4 Inches |
Length | 11.1 Inches |
Weight | 6.79 Pounds |
Width | 10.3 Inches |
Part Number | HKONYXSTUDIOG1 |
Model | HKONYXSTUDIOG1 |
More information #ad
9. Harman Kardon
#ad
Harman Kardon Onyx Studio 4 Wireless Bluetooth Speaker Blue New Model Renewed
#adHarman Kardon #ad - The rechargeable battery supports up to 8 hours of playtime. Connect up to 2 smart devices at the same time and take turns playing music. Stream music wirelessly via bluetooth to enjoy room-filling sound. This can be easily configured via the HK Connect App.More information #ad
The superior fabric and finishing combines with iconic design to compliment any style. Amplify your listening experience by wirelessly connecting more than 100 HK Connect+ enabled speakers. Access siri or google now from the speaker with a simple button press.Brand | Harman Kardon #ad |
Manufacturer | Harman Kardon #ad |
Height | 11 Inches |
Length | 10.3 Inches |
Width | 6.3 Inches |
Part Number | HKOS4BLUBSG-cr |
Warranty | 90 days limited warranty |
More information #ad