Exquisite and Portable
Only 380g in weight (including 4000mAh high‑capacity battery and antenna) and 27mm in thickness. GH900R is easy and comfortable to hold, with the belt clip, it can be held or hung on the waist.
Professional Industrial Design
GH900R provides simple operation method with a 4.0‑inch main screen, a 0.9‑inch secondary screen for information display, a big‑size key, a knob, and also smart applications.
High‑resolution Cameras
The front and rear cameras are both 13MP, helping capture clear, stable videos and sharp photos anytime, and supporting high‑quality, efficient video PTT services.
Dual‑mode Design
GH900R features dual‑mode operation: narrowband DMO & broadband private LTE. Certified by national authoritative testing institutions, it delivers powerful professional intercom performance and excellent compatibility, enabling flexible on‑demand connectivity.
Professional Audio
Featuring triple‑MIC noise reduction, a built‑in 2W high‑power speaker and a professional front sound chamber, the GH900R ensures loud, clear audio in all environments.
Durable and Rugged
Compliant with IP68 and MIL‑STD 810G standards, the GH900R withstands water, dust and multiple drops, maintaining stable performance in extreme conditions.
| General | |
| Network Support | Private network LTE Narrowband DMO |
| Frequency Band | Private network LTE: TDD 1.8G(1785~1805MHz) TDD 1.4G(1447~1467MHz) DMO:400‑470MHz |
| Dimension (HxWxD) | 150×68×27mm (excluding antenna) |
| Weight | About 380g (with antenna) |
| Maximum Tx power | 28±2dBm |
| Display | 4.0‑inch high‑definition LCD, 800×480, supports glove operation |
| Key | PTT key, power key, dial key, hang‑up key, programmable physical keys ×3, Android virtual keys ×3, SOS key |
| Battery | 30.4Wh (4000mAh, 7.6V) Charge and discharge cycles: 500 cycles (Retention: ≥80%) at 0.5C |
| External Interface | 18pin waterproof contact interface (supporting USB2.0, audio, serial port) |
| Operating System | Deeply customized intelligent security operating system (based on Android 13) |
| CPU | 6nm high‑performance octa‑core processor |
| Memory (RAM+ROM) | 6GB+128GB |
| Camera Head | Rear camera: 13MP, supports 1080P/25FPS camera, auto focus and auto white balance, CMOS, with flash Front camera: 13MP, fixed focus, CMOS, supports VGA/1080P/25FPS video recording |
| Bluetooth | 6nm high‑performance octa‑core processor |
| WLAN | Wi‑Fi 802.11b/g/n,2.4G/5G |
| NFC | Support 13.56M |
| Positioning | GPS |
| Loudspeaker | Front 30x40mm professional diaphragm speaker |
| Microphone | Support multi‑microphone noise reduction |
| Sensor | Gravity, proximity, gyroscope, light, geomagnetic |
| OTG | Support, expandable USB drive‑free camera and other devices |
| Card Holder | Private network SIM card holder x1, TF memory card holder x1 |
| Charging Method | Desktop or multi‑way charge |
| Interface Language | English/French/Portuguese/Chinese |
| Environmental | |
| Operating Temperature | -20℃~+60℃ |
| Storage Temperature | -40℃~+85℃ |
| ESD | IEC 61000‑4‑2 (level 4) ±8kV (contact discharge) ±15kV (air discharge) |
| Dust and Water Resistance | IP68 |
| Reliability | MIL‑STD‑810G |
Ready to Talk to One of the Caltta Experts?
Tel: +86-0755-86556659
E-mail: sales@caltta.com
12F, Building G2, International E-City, Nanshan, Shenzhen, China
+86-0755-86556659