Nekteck Portable Wireless Bluetooth Speaker with 10W Audio Output, IP65 Water Resistant & Dustproof, Shockproof Design, Built-in Mic, USB Charging Port for Phones - Black LATEST BLUETOOTH VERSION: This speaker is compatible with Bluetooth 4.1 Class II and supports A2DP V1.2, AVRCP V1.4 profiles agreement. It has a great connection range up to 10m in distance. It also supports AUX external audio input so you can play music via wired connection. LONG PLAYTIME: Unlike any other brands, you can enjoy 12 to 16 hours of playback time with with 4000mAh built in the Speaker. It also allows for USB charging of your smart phones, tablets and other USB devices, it's a perfect mate for having picnic at the park, camping, hiking or while sunbathing at the beach. RUGGED WATER-RESISTANT DESIGN: Going on a rugged trip? Worry no more! Nektecks Outdoor Bluetooth Speaker is IP65 rated water-resistant. It is designed to be shockproof, dustproof, splashproof and rainproof. The robust construction makes you feel secured. (Note: Only resists water spray and splash. Not advisable to fully submerged in water) COMPETITIVE SOUND QUALITY: High-definition, clean and clear full audio quality  thanks to the powerful battery and passive radiator. HANDY AND CONVENIENT: This outdoor bluetooth speaker is so handy and convenient to use. It is light and easy to carry perfect for a long travel, hiking, camping or just enjoying your time in the garden.