The Harman Kardon Onyx Studio 7 is a portable speaker with the following features;

• Dual tweeters for beautiful stereo performance
• Sleek anodized aluminum handle for ease of portability
• Rated output power of 50 W RMS
• Frequency response of 50 Hz – 20 kHz (-6dB)
• Signal-to-noise ratio of > 80 dB
• Bluetooth® version 4.2
• Battery life of 8 hours