Ezviz 4G Sim 2K Indoor Battery Camera -CB2 4G
The EZVIZ CB2 4G (CS-CB2-R105-1K3F4GA) is a compact battery camera that connects over a 4G LTE SIM card instead of Wi-Fi. It records 3 MP 2K video (2304 x 1296), has a 2000 mAh rechargeable battery, AI human-shape detection with a PIR sensor, night vision up to 8 m and two-way talk.



4G SIM connection, no Wi-Fi needed: You insert a nano SIM card with a data plan, and the camera connects to the EZVIZ app over the mobile network. This makes it usable in places where there is no Wi-Fi.
3 MP 2K image: A 1/2.8" 3 MP sensor records at up to 2304 x 1296 with H.265/H.264 compression. The 4 mm F1.6 lens gives a 106° diagonal view (90° horizontal).
Human-shape detection with PIR: AI human-shape detection combined with a PIR motion sensor detects people and triggers an alert, and you can set custom alert areas so only the part of the image you care about triggers alarms.
Always-On Video (AOV) and time-lapse: In AOV mode the camera keeps a time-lapse recording between event recordings. A dedicated time-lapse button on the camera starts time-lapse recording (requires a microSD card).
Night vision and two-way talk: IR night vision reaches up to 8 m in the dark, and two-way talk lets you speak with people near the camera through the app.
Small and easy to place: At 52 x 39.1 x 39.1 mm and 90 g, the camera sits on a magnetic base. It can stand on a flat surface or be fixed with the included metal plate and screws.
Who it's for / Works with
Places without Wi-Fi where a 4G SIM card with a data plan is available. Recordings are saved on a microSD card (up to 512 GB) or in EZVIZ CloudPlay (subscription, in certain markets). EZVIZ states it works with Amazon Alexa and Google Assistant, depending on language and country.
Good to know
The camera has no Wi-Fi: it needs a nano SIM card and a mobile data plan (not included). The microSD card and the 5 V / 2 A power adapter are sold separately; a power cable is included. The EZVIZ Power Partner battery pack is not included.
What's in the Box
Camera, magnetic base, power cable, foam sticker x 2, metal plate (5 mm hole diameter), screw kit, regulatory information x 2, quick start guide.
Technical Specifications
| Model | CS-CB2-R105-1K3F4GA |
| Image Sensor | 1/2.8" 3 MP progressive scan CMOS |
| Max. Resolution | 2304 x 1296 (2K) |
| Frame Rate | 15 fps (self-adaptive) |
| Lens | 4 mm @ F1.6, M12 |
| Field of View | 106° diagonal, 90° horizontal, 48° vertical |
| Minimum Illumination | 0.01 lux |
| Day & Night | IR-cut filter with auto switch, 3D DNR |
| Night Vision | Up to 8 m |
| Video Compression | H.265 / H.264 |
| Max. Bitrate | 1.5 Mbps |
| Network | 4G LTE (nano SIM), no Wi-Fi |
| LTE-FDD Bands | EU: B1/B3/B5/B7/B8/B20/B28; LA: B2/B3/B4/B5/B7/B8/B28/B66 |
| Smart Features | AI human-shape detection with PIR, custom alert area, AOV time-lapse |
| Two-way Talk | Yes |
| Local Storage | microSD card, up to 512 GB |
| Cloud Storage | EZVIZ CloudPlay (subscription) |
| Battery | 2000 mAh rechargeable |
| Power Supply | DC 5 V / 2 A (adapter sold separately) |
| Operating Conditions | -10 °C to 45 °C, humidity 95% or less (non-condensing) |
| Dimensions | 52 x 39.1 x 39.1 mm |
| Weight | 90 g (bare), 303 g (with package) |
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