The outdoor wireless speaker features stable wireless connection, powerful 2x2-inch tweeter and 4-inch subwoofer and portable design. Its stable wireless connection allows it to play your favorite speaker from your mobile devices (like Smartphones, Tablets, Laptops, etc.). Its additional music streaming options include Aux-in, USB flash and MMC card reading. Moreover, it comes with a detachable shoulder strap and built-in 1000mAh large capacity rechargeable li-ion battery makes this sound system portable and ready to party on the go. * Powerful and Portable: The wireless karaoke speaker system is equipped with a 4-inch Subwoofer and 2x2-inch tweeter for full range stereo sound which does not distort the audio even at high volume. It owns unique compact cylindrical appearance and comes with detachable shoulder strap for easy carrying. * Wireless/USB/MMC Card Reading/Aux-in Connection: Stable wireless function allows you to stream your favorite music from your devices (like Smartphones, Tablets, Laptops, etc.) to the unit wirelessly from up to 10m. Additional music streaming options include Aux Input, USB flash and MMC card reading. Simply load your card, USB flash drive or Aux-in cable, and then connect to the unit to get started. Also support FM Radio. * Crystal Hands-free Call: Stable wireless connection with your wireless-enabled mobile devices and built-in high-sensitive microphone for crystal clear hands-free call, you will not miss any calls when enjoy music. * Long Battery Life: Built-in 1000mAh large-capacity rechargeable battery for several hours playtime at 50% volume on a full charge, playtime varies according to volume level and audio content. * Simple Operation Buttons: We are committed to creating the simplest and clearest operating concept for our customers. Allows you to easily access your music without doing much. We believe it best gift we can bring to you. Brand: KOCASO Product Type: Outdoor Wireless Speaker Wireless Version: V5.0 Wireless Transmission Distance: 10m Speaker Output Power: 2W×2 5W Speaker Size: 4” 2”×2 Distortion: 0.5%@1W Frequency: 120Hz–20KHz S/N: ≥70Db Battery: Built-in 1000mAh rechargeable battery Input: DC 5V Charge Port: Via Micro USB Item Size: 25.0 * 13.0 * 13.0cm/9.84 * 5.11 * 5.11inches Item Weight: 1282g/2.82lbs Package Size: 29.0 * 18.0 * 17.0cm/11.42 * 6.69inches Package Weight: 1568g/3.46 lbs 1 * Outdoor Wireless Speaker 1 * USB Charge Cable 1 * Audio Cable 1 * Strap 1 * User Manual