4G(E-ink) recording card

1. Product Overview

4G(E-ink) recording card is a 4G portable conversational intelligent terminal for business meetings, customer visits, telephone communication and inspiration recording. The equipment is equipped with a low-power E-Ink electronic ink screen, which can clearly display recording status, task information and content summary. 4G independent networking is supported, recording upload, intelligent transcription, semantic analysis and summary can be completed without relying on mobile phones or WiFi, customer communication, meeting decision-making and business process data can be precipitated, content review, service quality inspection and task follow-up can be supported, and an intelligent closed loop of conversation from front-line communication to organizational insight can be constructed.

2. core selling points

• 4G communication independent networking

• 3.68 inch E-ink

• 24-hour ultra-long recording duration

• Supports backplate magnetic attachment

• Supports wireless charging

3. hardware parameters

Basic parameters:

• The product is in card form

• Overall size 100.5*64mm

• The thickness of the whole machine is 6.25mm

• Wearing with magnetic attraction

• Whole machine weight 60g

• Color is black, support customization

• E-inkscreenSize:3.68 Inch，Resolution:528*792

• Configure 1 RGB indicator

• Configure 4 touch buttons

• Equipped with 1 flat motor.
  

Audio Configuration:

• Contains 4 air guide wheat and 1 bone grain wheat

• Recording sampling format is 16kHz/16-bit

• Recording coding using OPUS

• The recommended pickup distance is 5 meters, and the effective pickup distance can reach 10 meters.

Storage:

• Using SD NAND

• Storage capacity range 512MB ~ 64GB.

Communication:

• Bluetooth version supports Bluetooth 5.3 and above.

Transmission rate:

• iOS Environmental transmission rate of about 50 K/S

• Android environment transmission rate of about 100 K/S

4G：

• AdoptLTE Cat.1

• Reachable transmission rate5Mbps

Charging:

• The battery capacity is 410mAh

• Charging interface is usedType-C

• Charging time less than 2 hours

Battery life:

• Endurance in local recording mode ≥ 24h

• Real-time transfer mode endurance ≥ 16h

• Standby duration ≥ 365 days

Working environment:

• Operating temperature range: 0~40 ℃

• Working humidity range: 5% ~ 95%

• Storage temperature range:-20 ℃ ~ 45 ℃

• Storage humidity range: 5% ~ 95%

Authentication:

• It can meet the certification requirements of mainstream countries such as China, Europe, the United States and Japan.
  

4. software parameters

Local recording:

• The device supports local recording function, and both start recording and end recording are completed by pressing the button for 2 seconds.

• Recording marks can be achieved by clicking the button. Recording includes two modes, namely, live environment recording and automatically recognized mobile phone call recording.
  

Data storage:

• The device has local storage capability, and the voice file will be stored to SD NAND in real time.
  

Data Transfer:

• Bluetooth transmission can complete file transmission after the recording ends, or real-time transcriptions can be realized through real-time streaming.

• WiFi fast transmission needs to be switched with App.

• The USB transmission specification is USB2.0 FS.
  

Device Management:

• Device binding, device unbinding, OTA upgrade, and factory settings restoration are all initiated by the app.

• The device is forced to restart, requiring a long press of the button for 12 seconds.

• The device can store and read device information, including name, model, MAC address, serial number, power, version number, etc.
  

Audio processing:

• Support microphone gain adjustment, used to adjust the amplification degree of the microphone acquisition signal

• Equipped with VAD function, can automatically retain valid voice

• Built-in AI vocal enhancement algorithm to optimize audio effects.
  

Hardware driver:

• Including two parts of the button and motor drive capacity.

• Key drive can realize key recognition and display control function.

• The motor drive can realize the control function of the motor.
  

5. Application Scenarios

Business meetings, customer visits, telephone and classroom learning, online meetings, medical communication, legal advice, consulting research, engineering inspection, recruitment interviews, store services