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
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BT speaker 402
Power supply: lithium battery
Power RMS: 5W
Speaker: 2 inches
Signal-to-noise ratio (SNR) SUR: ≥87dB
Frequency response (FR): 20Hz-20KHz
Input sensitivity: 1000mV
Color: Green, Green, Wood Grain
Impedance: 4Ω
Interface: USB head φ3.5 stereo input, TF
Function: button control, Bluetooth, FM, MP3, AUX
Product size: L102×D62.5×H73 mm
BT speaker 513
Box material ABS
Power supply method: Lithium battery
Waterproof grade: not waterproof
Built in battery capacity 1200mAh-2000mAh (inclusive)
Connection method: Bluetooth connection
Is there a built-in battery
Applicable scenarios include car, desktop, fitness, outdoor, home, mobile and portable, outdoor lawn, and others
Listing date: Spring 2026
Frequency response range 100HZ-20KHZ
Signal to noise ratio ≥ 75dB
Number of speakers 2
Effective distance of 10 meters
Appearance size 245 * 105 * 152
Colors: Black, Red, Blue, Milky White
Bluetooth version 5.3
Rated power 10w
Rated voltage 3.7v
Additional functions include card insertion, voice prompts, call function, and payment announcement
BT speaker 544
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
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BT speaker 517
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
Gaming speaker 302
Power supply: USB 5V/AC90V-240V
Power RMS: 8W + 3W x 2
Speaker: 4 inches + 2 inches × 2
Signal-to-Noise Ratio (SNR) SUR: ≥87dB
Frequency response FR: 20Hz-20KHz
Input sensitivity: 1000mV
The standard length of the host cable is 1.2 meters
The standard length of the auxiliary machine cable is 1 meter
Impedance: 4Ω
Interfaces: USB connector, φ3.5 stereo input, SD, USB
Function: BT, FM, AUX, MP3, RGB light, VOL, BASS
Product dimensions: W154×D223×H190 mm W80×D78×H111 mm
BT speaker 519
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