Premium gift waterproof portable Bluetooth tyre speaker subwoofer speaker

• Interface type: USB
• Battery capacity: 800mah
• Frequency response range: 100hz-20khz
• Output power: 3W
• SNR: 75dB
• Power supply: built-in lithium battery
• Track: 2
• Broadcast time: 6 hours
• Extended storage: 32GB
• Bluetooth protocol: 3.0
• Number of speakers: 1
• Effective distance: 10 meters
• Functions: anti-fall, dustproof, call function, waterproof, voice prompt, card insertion operation button