Active Noise-Cancellation: PASSIVE

Audio Crossover: Full-Range

Battery: Yes

Battery Capacity[mAh]: 1800

Bluetooth Version: 5.0

Brand Name: VIKEFON

Built-in Microphone: Yes

Cabinet Material: Plastic

Category: Speakers

Certification: CE

Channels: 3 (2.1)

Choice: yes

Communication: AUX,USB,bluetooth,Audio Line

Control: Volume control

Feature: Phone Function

Frequency Range: 100Hz-20KHz

Function 1: Car, desktop, fitness, outdoor, home, mobile and portable

Function 2: K song, live broadcast, square dance, broadcasting system, outdoor law

Function 3: Bluetooth connectivity

Function 4: Card insertion, waterproof, lighting, dustproof, anti drop

Function 5: Bluetooth version 5.1

Function 6: IPX 2

Function 7: TWS

Function 8: USB flash drive/card insertion/Bluetooth