Multifunctional Bluetooth speaker

Type: Bluetooth speaker
Connection method: Bluetooth connection
Interface type: USB
Battery capacity: 2400mah
Frequency response range: 100HZ-20KHZ
Output power: 10W
Signal to noise ratio: ≥70db
Electricity: built-in lithium battery
Channel: 2.1
Play time: 3.5 hours
Expansion storage: 32GB
Bluetooth protocol: 4.1
Number of speakers: 2
Effective distance: 10 meters
Function: insert card, waterproof, radio, dustproof, anti-drop, voice prompt, call function
Operation mode: button
Applicable people: general
Display: None
Shell material: plastic
Support format: U disk
Speaker adjustment method: button
Box material: plastic