BURSON Audio Playmate 2 Preamp/DAC/Headphone Amp.Excellent cosmetic and operating condition - ships in pictured factory packaging including accessories.That great Burson Audio sound for a bargain. Lot's of power for hard to drive headphones.Burson Audio Playmate 2 Headphone Amp / Pre Amp / DAC3W Class A AmplifierRSS9038 DACXMOS USB with DSD up to 512Upgradeable Opamps