ACEFAST K4 Go portable wireless speaker.

ACEFAST K4 Go portable wireless speaker.

Tk 2,000
Tk 2,500
Tk 2,000
Brand: ACEFAST
SKU: K4 Go
Availability: In stock

Key Features

IPX7 waterproof build
5 W peak audio power
8 hours playback time
Bluetooth 5.4 for stable connection

Color: Black
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Subtotal: Tk 2,000
ACEFAST K4 Go portable wireless speaker.

ACEFAST K4 Go portable wireless speaker.

Tk 2,500 Tk 2,000
ACEFAST K4 Go portable wireless speaker.

ACEFAST K4 Go portable wireless speaker.

Tk 2,500 Tk 2,000
Color: Black
Description

Specification

Main Features

BT version:
v5.4.
Transmission distance:
≥10m.
Frequency response:
60Hz-20000Hz.
Battery capacity:
900mAh / 3.7V.
Input:
DC 5V⎓0.86A (USB-C).
Charging time:
1.5 hours.
Working time:
8 hours (music mode).
*All measures are made under 50% volume level.
Speaker unit:
1 speaker unit + 1 diaphragm:
  • 1 full-range speaker unit [45×45mm];
  • 1 passive diaphragm [35×60mm].
Speaker power:
Rated power: 1×4W.
Peak power: 1×5W.
Waterproof rating:
IPX7.

Physical Specification

Size:
100*40*78mm.
Weight:
200g.
Color Black

Warranty

Warranty 18 months

Description

Portable Bluetooth Speaker (4W, IPX7 Waterproof, 8-Hour Playtime)

This compact yet powerful portable Bluetooth speaker is designed for users who want clear sound, reliable connectivity, and all-day portability. Equipped with Bluetooth v5.4, it ensures a stable wireless connection with a transmission distance of ≥10 meters, making it perfect for indoor and outdoor use. The speaker features a full-range 45×45mm driver paired with a 35×60mm passive diaphragm, delivering rich audio with enhanced bass response. With a frequency range of 60Hz–20kHz, it produces detailed, well-balanced sound suitable for music, podcasts, and movies.

Powered by a 900mAh rechargeable battery, the speaker offers up to 8 hours of listening time at 50% volume and charges fully in just 1.5 hours via USB-C. Its rated 4W output (5W peak) provides loud and clear audio despite the compact size. The IPX7 waterproof rating ensures durability against splashes, rain, and even accidental submersion, making it a perfect companion for travel, poolside relaxation, and outdoor adventures.

Designed with portability in mind, the speaker weighs just 200g and measures 100×40×78mm, allowing you to carry powerful sound wherever you go.
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