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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
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Description
A81U-ZS 5 in 1 8 Channel Dual Stream H.264 1080N AHD DVR, Support AHD / TVI / CVI / CVBS / IP Signal, A81U-ZS1. Support: AHD TVI CVI CVBS IP five signals 2. Step on the Internet: With cloud service, easy to achieve a variety of network penetrations, one step to remote monitoring, getting rid of various complicated network settings, easy and simple to operate. 3. Compression algorithm ideal: H. 264 compression algorithm, 30% decrease of stream due to advanced space time filtering technology. 4. Playback quality: Support full real time encoding video, full
1. Support: AHD/TVI/CVI/CVBS/IP five signals2. Step on the Internet: With cloud service, easy to achieve a variety of network penetrations, one step to remote monitoring, getting rid of various complicated network settings, easy and simple to operate.
3. Compression algorithm ideal: H.264 compression algorithm, 30% decrease of stream due to advanced space-time filtering technology.
4. Playback quality: Support full real-time encoding video, full real-time playback of multi-channel synchronous decoding.
5. Main and Sub Stream: Main stream and Sub-stream encoding. Main stream for local storage, ensure image quality; Sub-stream for real-time network transmission, easy to solve bandwidth bottleneck problem.
6. Mobile monitor: Support various mobile monitoring(iPhone, Windows Mobile, BlackBerry, Symbian, Android).
7. Display: VGA HD output simultaneously, support VGA 1080p HD output, lead the technology of HD resolution.
8. Operation interface: Similar to Windows operating style, easy to get started with powerful mouse right-click function.
9. Network: Powerful network services (support DHCP, PPPOE, FTP, DNS, DDNS, EMAIL, IP searches etc.) And perfect support (WEB, Client, SDK), easy to achieve interoperability.
10. Browsers: Support IE, Chrome, Firefox, Safari browsers.
11. Remote Access: With DNS (ARSP), easy to monitor remotely, 3322 (Greek network), dyndns, oray (peanut shells), myq-see and other DNS are also provided.
12. Differentiation: Boot screen free replacement, more than twenty languages, over 10 sets of GUI interface, ten kinds of remote control, which make our products different from others.
13. Others: With unique black box technology, the whole process can be monitored, which greatly reduces maintenance costs.
14. Encode capability: 8*1080N @25fqs P/ 30fqs.
15. Decode capability: 4*1080N @18fqs P/18fqs.
16. Multi-Input (ONVIF 2.8) Analogue: 8*1080N, Analogue + Network; HD: 4*1080N(AHD-NH)+7*720P(network), Network: 4*720P.
17. CPU Master: GM8286; DDR memory: 1*2G; AD chip: NVP6114A; Flash: W25Q128.
18. Space usage video: 1080N: 25G/day*channel, 720P: 20G/day*channel, 960H: 12-20G/day*channel, audio 691.2M/day*channel.
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 1
not cooling for post menopause
Set name: UltraCool Pillow, Standard - Medium/Firm Firmness, Item length width: 30.0 Inches
As a post menopausal person I did not find this cooling at all. The material is memory foam which holds heat but more importantly my head sinks in so that half of it is always surrounded by the pillow, trapping heat. It IS a supportive, soft and comfy pillow. For cooling though, I found it better to buy a firmer, thinner pillow which keeps my head from sinking into it, allowing heat to dissipate.
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Reviewed in the United States on August 25, 2025
★★★★★ 4
Nice and squishy
Set name: UltraCool Pillow, Standard - Soft/Medium Firmness, Item length width: 30.0 Inches
Not really a "cooling" pillow, but better than a standard or or fiber filled pillow. All these types of pillows and other bed linens are initially cool to the touch, but they quickly heat up to match your body temperature. Although the technology currently does not exist to maintain constant cooling, pillows like this are a good compromise for now. It's nice and soft and is a good value for the price.
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Reviewed in the United States on July 30, 2025
★★★★★ 5
New Fave
Set name: UltraCool Pillow, Standard - Medium/Firm Firmness, Item length width: 30.0 Inches
Love It so far... Its cool and comfortable... just the right firmness
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Reviewed in the United States on December 17, 2025
★★★★★ 3
Doesn’t stay cool long
Set name: UltraCool Pillow, Standard - Soft/Medium Firmness, Item length width: 30.0 Inches
The pillow was a little softer than I expected. It’s cool at first but at least for me heats up fast.
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Reviewed in the United States on May 11, 2024
★★★★★ 2
too soft, useless. but cool, kindah
Set name: UltraCool Pillow, Standard - Medium/Firm Firmness, Item length width: 30.0 Inches
the problem with these "cooling" pillows is any cooling effect is almost completely negated by a pillow case. this particular pillow is cool to the touch, but completely useless as it flattens out completely, way too soft I think for anyone. I would not recommend this "NASA" pillow for anyone for anything. Maybe for 10 bucks, but certainly not what they ask for this. I did keep it though. It is "cool" but only for a moment and your flipping it around like any other pillow. also way too soft. BUt, it has been cool enough to get me back to sleep.
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Reviewed in the United States on May 29, 2025