SCS ETC Portable Wireless Bluetooth Speaker with 7000mAh Power Bank-3D Surround Sound Outdoor Sports Speakers-Black True 3D Stereo Surround Sound: Pair 2 SCS ETC D-series speakers successfully into L/R 2.1 channel surround-sound audio and enjoy the incredible 3D stereo surround sound. With 10W (25watt) acoustic drivers, it produces loud and high quality music. High capacity power bank: Built-in 7000mAh extra-large capacity lithium battery, up to 15 hours music playback time, it can charge your cell phone tablet and other devices. Easy and quick to pair: Advanced CSR Bluetooth V4.0 technology, connection range up to 33ft(10 meters), compatible with Apple iPhone 7/7Plus/6 Plus/SE/5s/5c/5/4s/4, Samsung Galaxy S7/S6/S5/S4/S3, LG, PC Laptop and most Bluetooth-enabled devices. Water Resistant & Shock-proof & Dust-proof: Durable rugged, strong metal mesh and unique shape, the portability is endless, great for indoor, outdoor, sport, camping, hiking, climbing, riding etc. The build-in microphone supports hands-free calling and allows people on the other end of the call to hear you clearly, the device will automatically switch back to your music after you hang up. Nice Birthday/Christmas/ New Year gift or present for relatives and friends.