RD-6618B 6.5-inch 40W high-power backpack Bluetooth speaker high-volume Bluetooth speaker with dual speakers square dance card speaker RGB lighting wireless microphone

    Other applicable scenarios     Fitness activities, outdoor, home, karaoke, square dancing, broadcasting system, outdoor lawn     Connection method     Bluetooth connection     Frequency response range     Signal-to-noise ratio: 100HZ-20KHZ     ≥75dB     Effective distance     10-meter box material     Plastic     Appearance dimensions     278250553MM     Item number     RD-6618B     Colour     black     Power supply mode     USB     Waterproof grade     Non-waterproof Bluetooth version     5.0     Built-in battery capacity     Rated power: 4000mAh-6000mAh (inclusive)     40W     Net weight of the product     Rated voltage: 8.6KG     7.4     Additional function     Card insertion authentication type     Other     Whether it has a built-in battery     Built-in battery     New dual 6.5-inch portable backpack speakers     Power: 40W✨     Configuration: 6.52 speakers     Battery: 7.4V/4500MA     Machine dimensions: 278250553MM     The size of the color box is 307285607MM     Outer box dimensions: 630591*625MM     Packing quantity: 4 PCS     Gross weight: 6.8 KG     Net weight: 5.6 KG     Colour: Black     Function: BT/AUX/USB/TF/FM/MIC/TWS/LED     Accessories: WIRELESS single microphone with display + REMOTE control + 9V/1.5A adapter 🎉🎉