Introduction
Voice-First Keypad Handheld for Site Teams
The T280 fits patrol and facility jobs where workers need quick voice access and physical control while moving through a site. The smaller screen keeps the product focused on PTT response, keypad input, and simple Android task records instead of long form entry.
The voice-first structure is what matters: a keypad layout for repeated operation, a strong speaker for site communication, and M6 accessory options for headset or cradle use. This makes the model easier to judge during a real patrol-route test than a general Android PDA with only touch controls.
If the main task is barcode-heavy inventory, mobile printing, or handle-style RFID reading, the T280 should be compared with another SWELL handheld. For voice-led security, facility, and maintenance teams, it gives buyers a focused sample to check button comfort, audio use, accessory fit, and charging routine.
Parameters
| Core Field | Explanation |
| Waterproof | IP68 protection for patrol, security, and facility field environments. |
| OS | Android 10 for simple task apps beside UHF intercom operation. |
| CPU and memory | MTK6739 quad-core 1.3GHz with DDR2GB + 32GB storage. |
| Display | 2.8-inch TFT 480 x 640 multi-touch panel for short records and keypad-led operation. |
| Intercom | Digital and analog 2-in-1 intercom, U segment 400-480MHz, high power 4W and low power 1W. |
| Speaker | 3W speaker helps workers hear voice messages during patrol or facility work. |
| Buttons | SOS, two programmable keys, rotary knob, navigation key, back key, numeric keypad, screen lock, and battery lock. |
| NFC | NXP PN557 NFC for card presentation or close-range verification tasks. |
| Field connectivity | Dual Nano SIM, 4G LTE, Wi-Fi 802.11 a/b/g/n, GPS, BeiDou, and GLONASS. |
| Battery and charging | 7.6V / 3680mAh battery with 12V/1.5A charger; docking station or cradle available as an option. |
| Interface | M6 interface for data download, headset, OTG, external camera, and related accessories. |
| Size/Weight | 135 x 60 x 28mm / 300g. |
| Optional Functions | Description |
| Optional VHF | VHF 136-174MHz can be discussed when the project requires that radio range. |
| Walkie-talkie headset | Headset option helps patrol or dispatch teams check wearing comfort and voice use. |
| Docking station / cradle | Docking option gives teams a fixed return and charging point. |
| Data cable | Data cable option supports accessory and data connection planning. |
Features
pRODUCT DISPIAY
Shenzhen: 8F, Building A, Zhihui Innovation Center, Hang Cheng Industrial Zone, Bao 'an District, Shenzhen, China
Hong Kong: Room605, 6/F, FA Yuen Commercial Building, 75-77 FA Yuen Street, MongKok, Kowloon, Hong Kong.