SKU: 84949441410

DAHUA ESL-E021C Electronic Shelf Label (ESL)

$45000.00 $50000.00
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

DAHUA ESL-E021C Electronic Shelf Label (ESL)ESL E021C Electronic Shelf Label (ESL) > Equipped with Bluetooth communication technology, the ESL has high transmission speed, superior anti interference ability, low power consumption and high security. > Rich interactive interfaces, supporting 256 color LED indicators, Bluetooth mobile phone direct connection and customizable buttons. > Featuring wireless Wi Fi dual band technology, cable free installation and deployment, as well as intelligent

ESL-E021C

Electronic Shelf Label (ESL)

> Equipped with Bluetooth communication technology, the ESL has high transmission speed, superior anti-interference ability, low power consumption and high security.
> Rich interactive interfaces, supporting 256-color LED indicators, Bluetooth-mobile phone direct connection and customizable buttons.
> Featuring wireless Wi-Fi dual-band technology, cable-free installation and deployment, as well as intelligent algorithms, the ESL can provide coverage of up to 25-30 meters in open environments.

Performance

Model

DHI-ESL-E021C

Screen Type

Dot matrix electronic ink screen

Screen Dimensions

2.13"

Resolution

250 × 122

Screen Display Color

Black, white and red

LED Indicator

Yes

Replaceable Battery

Yes

NFC

Optional

Certifications

Certifications

CE-RED: Radio Equipment Directive 2014/53/EU

RoHS

Conform with RoHS
Directive 2011/65/EU, 2015/863/EU and REACH regulations as
defined in EC No 1907/2006 and subsequent amendments.

Battery

Type

Lithium button battery

Model

CR2450

Dimensions

φ24.5 × 5 mm (φ0.96" × 0.20")

Voltage

3.0 V

Capacity

2 × 600 mah

Weight

2 × 6.4 g (2 × 0.01 lb)

Storage Temperature

5 °C to 40 °C (41 °F to 104 °F)

Operating Temperature

0 °C to 40 °C (32 °F to 104 °F)

Lifespan

5 years(Under the condition of ≤ four updates a day.)

General

Bare Machine Dimensions

70 mm × 34.5 mm × 11.91 mm (2.76" × 1.36" × 0.47")

Weight

34.6 g (0.08 lb)

Packaging Dimensions

41 cm × 35 cm × 18 cm (16.14" × 13.78" × 7.09")

Packaging

Carton, 300 pieces/carton

Gross Weight/Carton

12.2 kg (26.90 lb)

Environmental Constraints

Operating Temperature

0 °C to 40 °C (32 °F to 104 °F)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84949441410

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4.4 ★★★★★
Based on 20 reviews
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Product Reviews
W
Verified Purchase
Westley
Fort Morgan, US
★★★★★ 4
Good job .
Size: 500 A
Product is working as it should so far .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
R
Verified Purchase
Robert N Atlanta
Waukegan, US
★★★★★ 5
Good little party speaker!
Style: X3206 with One Woofer
For the price, this thing is amazing! Let me cite pros and cons: Con - On battery, the bass is not very good and overall volume is not very loud. However, if you have to run on battery for a small group, it is definitely "loud enough" for a group. Such as background music for an outdoor dinner party, or cocktail party. Pro- Plugged in, the power and bass is impressive! MUCH Better than I expected. Connected it to my laptop for karaoke and it is definitely plenty loud for any house party, or plugged in, loud enough for any backyard party! ALSO - the lights that are included are pretty cool. And, it has a variety of input connectors for just about any application. Again, in this price range, it is a hit!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 1, 2025
D
Verified Purchase
Deborah E. Hall
Louisville, US
★★★★★ 5
Big controllable sound! Buy it
Style: X3206 with One Woofer
Just buy this! It will not disappoint. I bought it for a family reunion gathering in a 5000 square-foot backyard garden. There were multiple seating stations all around and it could be heard from any location without being turned up all the way. Even at the halfway point it is extremely loud. I love that it is waterproof Because I left it outside overnight when the sprinklers came on and it was just fine. The battery charge lasted for five or six hours. It doesn’t take long at all to recharge. It has a good weight to it so it’s not going to blow away, but it’s not too heavy to move around. I use it in the garage. I use it while cleaning. I use it on campsites. It is a fantastic speaker. It is a little large, but not too large that it’s not manageable. I only say that because I have a BOSE small Bluetooth speaker and if you’re used to that small size, this obviously is larger. I have no Bluetooth connection issues with it at all. It plays my Amazon prime music from my phone library perfectly. I would absolutely buy one again. While my BOSE Bluetooth speaker is great, I needed it as an extra boost for a DJ party atmosphere and this did the trick. Here’s a tip, create a playlist on your phone for hours of streaming music or go to YouTube and save your favorite music videos of live music DJs and you have your very own DJ all night.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
E
Verified Purchase
Eric L.
Los Angeles, US
★★★★★ 5
Great quality and price. Excellent value.
Style: X5206 with Two Woofers
Sounds great loud
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
M
Verified Purchase
Monchy
Boise, US
★★★★★ 5
Best karaoke speaker!
Style: X3206 with One Woofer, Style: X3206 with One Woofer
I was looking to buy a karaoke speaker and all were underpowered or overpriced. This went on sale ~100 and for that price it is THE perfect karaoke speaker. It has dual mic inputs for duets, (4) voice effects, voice echo. Each mic had it's own volume adjustment, there's also adjustment for echo, bass and treble. These are all knobs which i like a lot. The volume is push button which i don't like and would have preferred a knob also . Still, it's a lot of fun for karaoke! What I Iike a lot is the line out. Why? If I feel it needs more power, I can connect to any other speaker with a 3.5mm input. To me this is better than TWS systems that only pair with the same model(s). Speaking of power, it is ok for the size and price. It will sound good indoors at your home or backyard. It may not be the best for a larger hall. But it does have that line-out jack that will let you connect to (almost) any other speaker you want. What I have found lacking so far is the battery life. Fully charged, it was used over BT connection for music at ~50% volume for maybe 1.5 hours with lights and for podcasts at ~15% volume, no lights for 6 .5 hours before it died. So the 14 hour claim must be an exaggeration or only under very specific conditions. Also, bass is adequate, but it's not a 'booming' bass but you can tell it's there. Overall volume is good but will also depend on the device connected.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2022

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