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Enhance your Echo device with the Amazon Echo Sub, delivering powerful 100W deep bass for a richer, room-filling audio experience. Key Features Down-firing 6" woofer delivering 100W deep bass sound Pair with one Echo or Echo Plus (sold separately) for dynamic music that fills the room Supports pairing with two Echo devices for rich left/right stereo sound Easy setup via Alexa app and wireless connection to Echo devices Add Deep Bass to Your Echo The Echo Sub enhances your compatible Echo device by adding rich, deep bass. Its 6" woofer and 100W Class D amplifier deliver powerful down-firing bass that fills any room. Simply say, “Alexa, play music,” and feel the difference. Bundle with Echo for Stereo Sound Create a wireless 2.1 stereo system by pairing the Echo Sub with two Echo Dot (3rd Gen), Echo (2nd Gen), or Echo Plus (2nd Gen) devices for immersive left and right channel audio. Specifications Size: 202 x 210 mm Weight: 4.2 kg Audio: 4L sealed chamber with 6" (152 mm) downward-firing woofer, 100W Class D amplifier Low Frequency Response: 30Hz (-6dB) Crossover Frequency: 50 Hz - 200 Hz adaptive low-pass filter Power Supply: Auto-switching 100-240 V, 50-60 Hz AC universal input Wi-Fi: Dual-band Wi-Fi supporting 802.11 a/b/g/n (2.4 and 5 GHz) networks; does not support ad-hoc (peer-to-peer) Wi-Fi networks Alexa App Compatibility: Fire OS, Android, and iOS devices Accessibility: Features for vision, hearing, mobility, and speech needs via Alexa app and devices Warranty: 1 year limited warranty and service included