Havit SK889BT - bluetooth RGB wireless speaker, black

Number of speakers: 1 | Volume control: Buttons | Connectivity technology: Wireless | Battery voltage: 3.7 V | True Wireless Stereo (TWS) technology: Yes | Recommended usage: Universal | Product type: Stereo portable speaker | Battery capacity: 1500 mAh | USB ports quantity: 1 | Power indication light: Yes | Product colour: Black | Battery type: Built-in battery | On/off switch: Yes | Bluetooth version: 5.3 | Compatible memory cards: External TF Memory Card | Volume control: Yes | Bluetooth: Yes | Depth: 100 mm | Audio formats supported: MP3 | Width: 100 mm | Battery life (max): 6 h | Height: 138 mm | Material: ABS, PC | RMS rated power: 7 W | USB charging: Yes | Output voltage: 5 V | Water resistance: No | RGB backlighting: Yes | Battery recharge time: 4 h | Package contents: USB Cable | Package contents: Speaker x 1 | Built-in microphone: No | Driver diameter: 57 mm | Warnings: Do not expose to open flames or high temperatures. | Bluetooth range: 10 m