The HEOS 1 produces amazingly big sound from a compact, portable speaker. Enjoy streaming music from the cloud or local files using the intuitive HEOS app for iOS, Android, and Kindle. The HEOS 1 produces amazingly big sound from a compact, portable speaker. Enjoy streaming music from the cloud or local files using the intuitive HEOS app for iOS, Android, and Kindle. The HEOS 1 features advanced DSP (Digital Signal Processing) to deliver full range sound, with custom EQ sound tailoring that helps deliver a smooth, natural tonal balance, along with dual channel Class D digital audio amplification. Compatible with iPod, iPhone and iPad. Bluetooth compatible. 3.5mm AUX in. 2 amplifier channels. General information Model number: HEOS1HS2WTE2. Size H18.9, W12.9, D12.8cm. Mains operated. Power from USB. Manufacturers 2 year guarantee.