Product information:
-Wireless Transmission Rang: Up to 10 meter
-Frequency Response: 45Hz to 18KHz
-Signal to Noise Ratio: Greater than or equal 85dB
-FM Scan Range: 87.5 to 108.0MHz
-USB Charging: DC5V
-Speaker Drive Size: 4 x 2in
-Battery Capacity: 1500mAh
-Play Time: 3 to 5 hours
-Charging Cable: Type-C
-Output Power: 10W
-Peak Music Power Output: 200W
-Size: 166 x 157 x 410mm

Contents in Box:
-1 x Bluetooth Speaker
-1 x Charging Cable
-1 x Microphone Optional

More information about product:
-Bluetooth 5.0 Chip: Lower power consumption, more stable connection and faster transmission. Compatible with smartphones, tablets and any other Bluetooth-enabled devices within 10m or 32ft. No cable and no hassle.
-Dual Speaker, HiFi Stereo, Deep Bass: Dual 4-inch speaker deliver more powerful bass, clearer mids and highs even when the volume is cranked up. No sound distortion. The original feeling about your favorite music remains.
-RGB Light Show: The wonderful light react and phase in time with the beat, included 7 RGB colours and 3 modes, give your party an exciting atmosphere.
-Additional Play Modes: When Bluetooth device is not available, you can insert a U disk or TF card to play your favorite tunes. With FM radio input function, you can tune in your favorite radio channel with your friends.
-Karaoke Input: When connected to the wired mic Optional, it can provide Karaoke function, allowing you to enjoy singing whether you are providing live streaming or joining in a party.
-TWS Function: When pairing two speakers the powerful stereo sound will be synchronized and surround you by 2 channels, which offers you a booming stereo sound experience. -Lightweight and Portable: This compact karaoke speaker is easy to carry around with its built-in handle and phone holder, so you can bring the party wherever you go, indoors or outdoors.

TWS Function:
-Open two Speakers at the same time.
-And then long press the Mode button on this Speaker.
-Until we get another Speaker paired up.
-Connect your phone to Speaker Bluetooth.