10-Hour Battery Life Waterproof and Dust-Proof (IP67) Speaker phone Buoyant Carabiner Aux-in Wireless Dual Speaker Pairing Quick Charge Charging Cable Free to be. The No Bounds Bluetooth speaker is the most portable in our durable, outdoor speaker family, crafted with sustainable REGRIND™ Cork to be as natural as its intended environment. The 4-color speaker series is designed for outdoor use with rugged, waterproof and dust-proof materials. Each No Bounds boasts a 10-hour battery life with wireless dual-speaker pairing capability, and speakerphone functionality. Quick charge it with the provided cable between uses. All No Bounds speakers are crafted from the Marley REWIND™ fabric, REGRIND™ Silicone, REGRIND™ Cork, and Recyclable Aluminum — more natural physicality for your physical lifestyle.