The world’s most effective noise-blocking system Specially designed to create a sound shield that safely blocks noise Tactile bedside control pad for remote adjustments, even in the dark One-click start — no pairing, voice commands or apps required 15 meticulously crafted, gapless sounds engineered for sleep optimization Powerful sound output that blocks even the most disruptive noise LED-free, durable, zero-maintenance design Upgradeable to a dual-speaker system to block multiple noise sources Includes 1x Manta White Noise Machine and 1x Control Pad.