This portable speaker is multifunctional and splash-proof, portable to take, both suitable for indoor and outdoor use. Features:[HiFi Utility BT Speaker]Built-in subwoofer, you can enjoy an impressive crystal clear sound quality. By restoring the real sound quality, it will bring you immersive experiences while watching movies, listening to music and playing games.[U Disk/ TF Card Reader & AUX-IN]Support U disk and TF card read and play, AUX-IN mode and other functions, allowing you to enjoy music anytime & anywhere.[Hands-Free with Mic]With the built-in microphone, you can take calls, switch songs with abundant control buttons, set your hands free.[Wireless BT Technology]Integrated with BT Technology, it can be connected to Smartphones, PCs, compatible with iPhone/ iPad and other BT devices within 10 meters, bring you high-quality music enjoyment.[Long Battery Life]Built-in 1200mAh lithium battery supports up to 3 hours of playtime, allowing you to listen to your favorite music freely.Specification:Brand Name: T&GModel Number: TG116BT Version: BT4.2Transmission Distance: Up to 10 mSNR: ≥90dBFrequency Response Range: 150Hz-20kHzSpeaker Size: 52mm * 2Output Power: 4ohm, 5W * 2Power Supply: 3.7V/1200mAh 18650 Lithium BatteryMusic Time: about 3 hoursColor: BlackItem Size: Approx. 18.8 * 8.8 * 8.8cm / 7.40 * 3.46 * 3.46inItem Weight: Approx. 538g / 18.97ozPackage Size: Approx. 19.6 * 9.3 * 8.8cm / 7.71 * 3.66 * 3.46inPackage Weight: Approx. 632g / 22.29ozPackage List:1 * Speaker1 * AUX Cable1 * Charging Cable1 * User Manual (Chinese & English) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.