Ninebot BT2928 Engine Speaker bluetooth Subwoofer Type-C Recharging Soundbar IP55 Dustproof and Waterproof Suitable for Kart Balance Car Electric…


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Last updated on February 22, 2024 3:55 am Details


Main Features:

Engine Sound Simulation System:can simulate the realistic engine roar according to the vehicle’s accelerator, brake, speed and other signals.

Suitable for Many Models of Ninebot: Through a special base, it can be easily installed on a variety of vehicles on the Ninebot.

Standalone Bluetooth Speaker: 4x8W Ferroboron strong magnetism large-diameter loudspeaker, multi-directional sound field design.

Metal Shell 

IP55 Dustproof and Waterproof

USB Type-C Interface


Brand: Ninebot
Model: BT2928 
Protection Level: IP55
Control Button Functions: power on/off, volume up, volume down, next song, mode switching.
Charging Interface: USB Type-C
Speaker Unit

Size: 50×50mm

Material: NdFeB

Specification: 20 Core Dual Magnetic

Power: 8W×4

Bluetooth Specifications

Bluetooth Protocol: HFPV1.6 HSPV1.2 A2DPV1.2 AVRCPV1.4 DIV1.3

Bluetooth Version: 4.2 and above

Frequency: 2.4GHz-2.48GHz

Working Distance: about 10m

Audio Specifications

Number of Channels: Two Channels

Frequency Range: 100Hz~20KH

Signal to NoiseRatio: >80dB (2W)

Battery Specifications

Rated Capacity: 2200mAh (7.4V)

Play Time: 2~3h 

Charging Voltage: 5V3A

Charging Time: 2.5h

Ambient Temperature Storage Environment: -10~60°C
Use Environment: -10-50°C
Dimension Product Weight: about 0.72kg 
Package Weight: 0.99kg 
Product Size (L x W x H): 24.80 x 8.30 x 7.70 cm
Package Contents
1 x Speaker, 1 x Type-C Power Cord, 1 x Manual