Kocaso Portable Bluetooth 2.1 Speaker with Carrying Strap (Cylinder Shaped, Wireless, AUX in, MicroSD, USB) WIRELESS AND COMPACT - With a powerful sound, this speaker will amaze wherever it goes! Features two 2" tweeter horns and a 4" bass speaker for clarity and depth, with a big frequency range and simple connection to a variety of devices through bluetooth capability. ULTRA-PORTABLE - With an adjustable strap for easy transportation, this lightweight speaker is fun to bring with you. Rubber surfacing resists dirt and scratches, so it's ready for a sunny day outdoors! BLUETOOTH CONNECTIVITY - Can connect to Bluetooth devices or AUX in 3.5mm cables, and has a USB port and MicroSD slot so it's compatible with virtually all modern music storage. HIGH CAPACITY BATTERY - Charges via included USB cable from any powered port, like from a computer or wall cube. High capacity battery for long-lasting sound. INDUSTRY LEADING CUSTOMER SUPPORT - You can continue to rely on Electro-Deal to offer the markets most competitive prices, paired with industry leading customer support, and all backed by a one year, full manufacturers warranty on new products or a 90 day limited warranty for refurbished products! Bluetooth Version: 2.1 Input: DC 5V Output Power: 2W2+5W Speaker Size: 4 + 22 Distortion: 0.5%@1W Frequency: 120Hz20KHz Separation: 40dB(1KHz) S/N: 70dB Transmission Distance: 10m Weight: 3 lbs Dimensions: 11&#034; long, 6&#034; wide Battery: 5V 1000mAh/ 38g Wireless Barrel Speaker USB Charging Cable Audio Cable Strap User Manual