T&G TG662 Portable Subwoofer Wireless Bluetooth Speaker Features: 1. Bluetooth 5.3, compatible with all Bluetooth devices. Built-in call microphone for easy answeringmaking calls. 2. High power, built-in stereo and 360-degree stereo sound. 3. TWS function, you can connect two speakers to synchronize with one mobile phone. 4. Large-capacity lithium battery can play music repeatedly for a long time. 5. Simple button control, you can press the button to turn onoff, playpause, switch modes, skip songs, adjust volume, etc. 6. Supports music files in mp3, wma, WAV, FLAC, and ape formats. 7. Support TF card or Misro SD card, support USB2.0 hard disk. Specification: 1. Bluetooth specification: V5.3 2. Transmission range: 10M 3. Battery capacity: 500mAh 4. Built-in voltage: 3.7V 5. Playing time: about 1H (varies depending on audio content and volume) 6. Speaker specifications: 52mm 7. Speaker power: 4Ω5W 8. Frequency response: 120Hz-18KHz 9. Audio noise ratio: greater than or equal to 85db 10. Size: 110x76x82mm 11. Weight: 266G 12. Charging input: 5V500mA packing list: 1. Bluetooth speaker x 1 2. USB cable x 1 3. User manual x 1