Sleep Better. Feel Better. Live Better. The Sound Oasis BST-400 Super Bass Stereo Bluetooth Sound Therapy System is the most versatile sound machine on the market. Suitable for adults and children, this sound machine can be used as a travel accessory, sleep aid, or treatment of tinnitus and sleep disorders. The Bluetooth capabilities of this sound machine allow it to be used as an amplified professional quality speaker for special occasions by simply pairing it to your device and streaming all of your favorite tunes. The Sound Oasis Stereo Bluetooth Sound Therapy System is the ultimate dual-purpose sound machine for improving sleep. At bedtime, enjoy 20 professional sounds ideal for managing insomnia, tinnitus or blocking annoying sounds that can interfere with your sleep. In the daytime, enjoy the BST-400 as a clear, deep bass Bluetooth speaker. This attractive, dual purpose sound machine is perfect for creating a healthy sound environment that promotes relief from tinnitus, improved privacy at work or a higher quality of sleep - at home or while traveling. With included Sound Oasis APPs, you can actually control the sound frequency output of each APP sound for the ultimate in sound customization. Improved Listening Throughout The Day Two powerful 10-watt speakers and booming subwoofer give you a versatile, professional quality listening experience like no other sound machine. The easy-touch controls allow you to cycle through 20 soothing sleep sounds or turn up the volume on your favorite music in the afternoon. With built-in Bluetooth technology, you can stream your favorite music, podcast, audio story or sounds from up to 30 feet away. Easy Touch Controls The Sound Oasis Stereo Bluetooth Sound Therapy System has easy-to-reach button controls and a pause/play button for frustration-free use. Use the easy-touch volume control to dial into your ideal volume setting and the Mode button to transition from Bluetooth mode to sound settings. Attractive Sleek Design This user-friendly, attractive design caters to almost any lifestyle with its durable aluminum construction and travel-ready size. Adults suffering from insomnia, children experiencing difficulty sleeping, night-shift employees, international travelers or light sleepers can benefit from the professional quality sounds that will melt away the stressors of life, wherever life takes you. Cordless with Rechargeable Lithium Battery The long-lasting rechargeable lithium battery gives you up to 8 hours of uninterrupted listening with every full charge. Use the provided USB cable to recharge your relaxation in about 2 hours and get back to enjoying blissful tones. For stationary use, the included USB charging cable and wall charger provide continuous power. A Variety of Soothing Sounds Tune in at the office or before bed to 20 built-in sleep tones with the touch of a button. Whether you prefer the sound of rushing water or gentle forest noises, this versatile speaker delivers feeling of focus and relaxation with every use. The 20 different tones are non-looping for undisturbed, continuous sounds. Simply choose your favorite sound, adjust the volume and slip into a unique auditory experience. A preloaded Micro SD card houses 20 provided tones and easily inserts to the built in micro SD card slot. Professional Quality Sound Therapy Super bass stereo Bluetooth soundPlay built-in sounds or Bluetooth stream music from your Bluetooth enabled deviceIncludes micro SD card slot with one micro SD card preloaded with 20 soundsBluetooth 4.0 with 30’ range2 x 10 watt speakers with subwooferHeadphone jackHands free telephone useSleep sensitive indicator lights that turn off after 10 secondsBack, play/pause, forward, power, mode and volume buttonsBuilt-in rechargeable lithium battery (3.7 V, 4,000 mAh)High quality aluminum constructionProduct size: 7.87” x 2.36” x 2.52” (200mm x 60mm x 64mm)Product weight: 1.5 lbs (676 grams)Includes: sound system, USB cable, wall plug, SD card preloaded with 20 sounds BST-100-20 BST-400-20 BST-80-20 BST-80-25T BST-80-20P BST-150T Buying Options Buying Options Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.2 out of 5 stars 545 4.2 out of 5 stars 545 4.2 out of 5 stars 583 4.2 out of 5 stars 583 4.3 out of 5 stars 199 — Price $50.99$50.99 $83.99$83.99 $46.99$46.99 $49.99$49.99 $49.99$49.99 $69.99$69.99 Sounds Included 20 Sleep/Relax Sounds 20 Sleep/Relax Sounds 20 Sleep/Relax Sounds 25 Tinnitus Therapy Sounds 20 Pet Therapy Sounds 30 Tinnitus Therapy Sounds Use of Free Sound Oasis APPs Yes Yes Yes Yes Yes Yes Bluetooth Streaming Yes Yes Yes Yes Yes Yes Alarm Clock No No No No No Yes Size 62.0mm/2.44” D; 59.3mm/2.33” H 7.87” x 2.36” x 2.52” 2.22” x 2.44” x 2.44” 2.22” x 2.44” x 2.44” 2.22” x 2.44” x 2.44” 5.47” x 3.23” x 1.97” Weight 316 g/11.14 oz. 676 g/1.5 lbs. 206 g/7.27 oz. 206 g/7.27 oz. 206 g/7.27 oz. 266 g/9.38 oz. Rechargeable Yes - lithium 3.7V/500 mAh Yes - lithium 7.4V/2,000 mAh Yes - lithium 3.7V/500 mAh Yes - lithium 3.7V/500 mAh Yes - lithium 3.7V/500 mAh Yes – lithium 3.7V/2000 mAh Run Time 5 - 12 Hours 5 - 14 Hours 5 - 10 Hours 5 - 10 Hours 5 - 10 Hours 7 - 16 Hours Charge Time 2 - 3 Hours 6 Hours or Less 2 - 3 Hours 2 - 3 Hours 2 - 3 Hours 2 - 3 Hours Bluetooth Range 30’/10m 30’/10m 30’/10m 30’/10m 30’/10m 30’/10m