FM 4 in 1 Smart Bluetooth Speaker

Product information:

Battery capacity: 1000 mAh
Dimensions: 64*48*35mm
Battery voltage: 3.7V
Product weight: 141g
Charging time: 4-5 hours
Speaker size: 33 mm
Charging voltage: 5V 1A
Output power: 4.5 watts
Playing time: ≥10 hours
Response frequency: 20-20000 Hz
Transmission distance: >10 meters
Signal to noise ratio: ≥70 Dolby
Bluetooth version: 5.0