BT speaker 520
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm
BT speaker 521
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm
BT speaker 522
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm
BT speaker 522A
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm
BT speaker 523
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm
BT speaker 524
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm
BT speaker 525
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm
BT speaker 526
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm
BT speaker 527
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm
BT speaker 539
Box material: Plastic
Power supply method: Lithium battery
Waterproof rating IPX6
Built in battery capacity 1500mAh (included)
Connection method: Bluetooth connection
Is there a built-in battery
Applicable scenarios include in car, desktop, fitness, outdoor, home, mobile and portable, karaoke
Listing date 2025
Frequency response range 100HZ-20KHZ
Signal to noise ratio ≥ 70db
Number of speakers 1
Effective distance of 10 meters
Appearance size 110 * 90 * 90
Bluetooth version 5.3
Rated power 10
Rated voltage 3.7
Additional function card insertion
BT speaker 540
Power supply: lithium battery
WATERPROOF: IPX7
Impedance: 4 Ω
Power RMS: 5W
Interface: USB φ 3.5 stereo input TF
Speaker: 2.25 inches
Function: Key control, Bluetooth FM、MP3
SNR SUR: ≥ 85dB
Frequency response FR: 20Hz-20KHz
Product size: W80 × D80 × H110 mm
Input sensitivity: 1000mV
Black, White, Red, Blue, Blue, Green
BT speaker 543
Power supply: USB 5V
Power RMS: 5W + 3W x 2
Speaker: 3 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥85dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Impedance: 4Ω
11 Interface: USB head φ3.5 stereo input
Features: Master volume control, bass knob, RGB lights, Bluetooth
Product dimensions: W100 × D120 × H135 mm, L65 × D63 × H80 mm