Harman Kardon Onyx Studio 7

Transducers: Woofer 1 x 120mm, Tweeter 2 x 25mm • Rated output power: 50W RMS • Power supply: 19V / 2A • Frequency response: 50Hz – 20kHz (-6dB) • Signal-to-noise ratio: > 80dB • Battery type: Li-ion polymer 11.70Wh (equivalent to 3.6V/ 3250mAh) • Battery charge time: 5 hours • Music play time: up to 8 hours (dependent on volume level and audio content) Wireless specification