Doro 2820

Key Features:

• 4G Connectivity: Supports high-speed LTE networks.
• Emergency Assistance Button: Provides a quick way to contact emergency services.
• Camera: VGA resolution with interpolated image enhancement.
• No Email or GPS: Does not support email or GPS functionality.
• Hearing Aid Compatible (HAC): Designed for users with hearing aids.
• No Internet Access: Lacks internet browsing capabilities.
• Speakerphone: For hands-free communication.
• Talking Keys: Provides auditory feedback when keys are pressed.
• Visual Ring Indicator: Lights up for incoming calls.
• Torch: Built-in flashlight for convenience.
• Operating System: Runs on Mocor RTOS.

Core Features:

• Backlit Keypad: Helps with visibility in dim lighting.
• Calendar & Reminder: Supports event scheduling with reminders.
• Call Timer and Clock: Tracks call duration and provides standard clock features.
• FOTA (Firmware Over-The-Air): Enables software updates.
• In Case of Emergency (ICE): Stores important emergency contact information.
• Startup Wizard: Guides users through initial phone setup.
• Wake-Up Alarm: Includes an alarm clock function.

Camera Features:

• No Autofocus: Lacks autofocus capabilities.
• Camera Flash: Comes with a built-in flash for low-light photos.
• Image Viewer: Allows users to view saved photos.
• No Magnifier Function: Does not include a magnifier.
• Video Recording: Capable of recording videos.

Storage and Contacts:

• Call Log: Stores up to 60 call entries.
• Internal Memory: 17MB of storage.
• Favorite Contacts: Displays the top 10 contacts for easy access.
• Phonebook: Can store more than 500 contacts.
• White and Black Lists: Manage allowed and blocked contacts for security.

Display:

• Adjustable Font Size: Customizable text size for better readability.
• Backlit Color Display: Features a 43.2x57.6 mm screen with 320x240 QVGA resolution.
• Customizable Wallpaper: Personalize the background image.
• Optimized for Visually Impaired Users: Optional modes to enhance visibility.
• No Touchscreen: Operated through physical buttons only.

Messaging:

• MMS and SMS: Supports both multimedia and text messaging.
• Dedicated SMS Key: Provides easy access to text messaging.

Sound and Alerts:

• Polyphonic Ringtones: Includes 7 ringtone options.
• Adjustable Ringer Volume: 9 levels of volume, with vibration for silent alerts.
• Ringer Off Setting: Can disable the ringer if needed.

Audio and Acoustics:

• No Boost Protection: Does not have audio boost protection.
• HD Voice Certified: For clearer voice quality.
• HAC Rating: M4/T4 for compatibility with hearing aids.
• Amplification: Maximum receiving amplification of 35 dB.
• Ringer Volume: Exceeds 83 dB at 1 meter.
• Microphone Mute: Mute option during calls.
• Speakerphone Volume: Adjustable with 9 levels.
• Tone Control: Can modify audio tones.

Ergonomics:

• Dimensions: 107.25x56x20.3 mm.
• Weight: 116.9g including the battery.

Connectivity:

• 3.5mm Headset Jack: For headphones or external audio devices.
• USB Type-C: For charging and data transfer.

Power:

• Battery: 1000mAh Li-ion battery with up to 6 hours of talk time.

Technology:

• 2G & 3G Support: Compatible with GSM 900/1800 and UMTS Band 1 & 8.
• 3G Data Rate: HSUPA up to 5.7 Mbps and HSDPA up to 21 Mbps.
• Bluetooth: Version 5.0 for wireless connectivity.
• Chipset: Unisoc T107.
• 4G LTE: Cat 1 VoLTE support for bands 1, 3, 7, 8, 20, and 28.
• Memory Card: Supports MicroSD cards up to 128GB.
• SIM: Uses a Micro-SIM (3FF).

SAR Values:

• Head: 0.798 W/kg.
• Body: 1.442 W/kg.
• Limbs: 3.167 W/kg.

Accessories:

• No Remote Alarm Key Support: Does not support a remote alarm key.