T&G TG545DK Home Handheld Dual-microphone KTV Wireless Bluetooth Speaker with Flashlight 1. Bluetooth 5.3, compatible with all Bluetooth devices, built-in calling microphone, you can easily answermake calls. 2. 10W high power, two-channel speakers, allowing you to hear better. 3. Provide built-in stereo sound and 360-degree stereo sound. 4. Built-in 3600 mAh battery allows you to enjoy music freely on rainy days or in the bathroom. 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. 8. Bring a flashlight and LED lighting. 9. TWS function, you can connect two speakers with the phone. 10. With 2 wireless microphones, you can sing freely anytime and anywhere. parameter: 1. Bluetooth specification: V5.3 2. Wireless transmission range: 10M 3. Battery capacity: 3600MAH 4. Built-in voltage: 3.7V 5. Playing time: about 3H 6. Speaker specifications: 103mmx1 7. Speaker power: 410Wx1 8. Frequency response: 120Hz-18KHz 9. Signal-to-noise ratio: greater than or equal to 95dB 10. Charging input: 5V1000 MA 11. Size: 194x118x163mm packing list: 1. Bluetooth speaker x 1 2. Charging cable x 1 3. Audio cable x 1 4. User Manual x 1 5. Wireless microphone x 2