Amazon offers the Pictek 20W Waterproof Bluetooth Speaker w/ 30Hours play time for a discounted price of $34.99 via coupon code "4WSBPNMJ" plus free shipping on orders above $35, or with Amazon Prime. Limited time offer. You save $25 off the price! That's the lowest price we could find. This has a 4.5 out of 5 star rating on Amazon.

• 20W High Power Stereo Sound
• Powerful Bass and HD Sound
• Built-in lithium 4400mAh lithium-ion battery ,30Hrs Play Time
• Using the IPX4 technique,Splash-resistant and Shockproof
• Advanced Bluetooth 4.0 technology Bluetooth Transmission
• 45 Day Refund, 18 months Warranty