![e-Call-Product Portfolio](https://www.kepotech.com/wp-content/uploads/2023/01/e-Call-Product-Portfolio.jpg)
SOS & ECALL
E-call system can be designed and developed according to specified requirements in both shape and installation structure. The circuit and wiring harness design scheme meets the requirements of the European Union, the Middle East, Australia, and Russia.
• Driving Date Monitoring & Reporting
• OTA Upgrade
• Vehicle Positioning
• Self-Diagnosis
• Location Cache
• Solar & USB Charging
Products
![Speaker-ecall](https://www.kepotech.com/wp-content/uploads/2023/01/Speaker-ecall-Comp-1024x1024.jpg)
e-Call Speaker
Impedance ············ 4Ω±20%(1Vrms at 600Hz at20℃)
Sound Pressure Level ···················· 82±2 dB @ 1w/1m
At 500, 800,1500,2000 Hz AVG (at20℃)
Resonance Frequency ····························· 260Hz±20%
Frequency Range ······································ Fo ~10KHz
Input Power ·································· Rated 4W / Max.8W
Distortion ··································· <2.5% Max. at 1W(2V)
Waterproof ································································ IP52
Effective Stroke ······················································ 1.3mm
Maximum Stroke ···················································· 2.7mm
![KEPO SOS Module](https://www.kepotech.com/wp-content/uploads/2023/01/SOS.jpg)
SOS
Voltage ································································· 8±10% V
Typical Working Current ························· 7±10% mA
Max. Working Current ···························· 15±10% mA
Sensitivity ················································ -10.5±2.5dB
Max. Sound Pressure Input ······························ 116dB
Distortion ······································································ ≤1%
Directivity ·········································· Omni-directional
SNR ·········································································· >=63dB
Frequency Domain ···································· 100~10kHz
Working Temperature ······························· -40~+85℃
Store Temperature ······································ -40~+95℃
![KEPO UBI Module](https://www.kepotech.com/wp-content/uploads/2023/01/UBI.jpg)
UBI
Working voltage ········································ DC4.2-4.8V
Working current ·············· About 200mA @ dc4.5v
Low power consumption current ····· Less than 1mA
Battery capacity ········· 800mAh,internal battery NiMH
BLE ······································ BLE interface(optional)
Sensor ······················ up to 500,000 tracking points
FOTA ······················································ FOTA Available
Figuration setup ······ APP setup system figuration
Solar panel Charging power ··························· 0.4W
Humidity ················································· 5%RH~95%RH
Working temperature ············· – 20 ° C to + 70 ° C
Storage temperature ·························· -25°C ~ +75°C
Applications
Emergency Rescue (e-Call)
Roadside Assistance(b-Call)
Why Choose KEPO
1. Simulation
![KEPO-Speaker-Sound Pressure Level](https://www.kepotech.com/wp-content/uploads/2023/02/扬声器-声压.gif)
Sound Pressure Level
![KEPO-Speaker-Outfield Sound Pressure Level](https://www.kepotech.com/wp-content/uploads/2023/02/扬声器-外场声压级.gif)
Outfield sound pressure level
![KEPO-Speaker-Magnetic Flux Density](https://www.kepotech.com/wp-content/uploads/2023/02/扬声器-磁通密度.gif)
Magnetic Flux Density
2. Structural Analysis
![KEPO Simulation Experiment - Speaker - Basin Frame Drop Deformation](https://www.kepotech.com/wp-content/uploads/2023/01/Basin-Frame-Drop-Deformation.gif)
Basin Frame Drop Deformation
![KEPO Simulation Experiment - Speaker - Ring Buckling](https://www.kepotech.com/wp-content/uploads/2023/01/Ring-Buckling.gif)
Ring Buckling
![KEPO Simulation Experiment - Car Speakers - Vibration System Movement](https://www.kepotech.com/wp-content/uploads/2023/01/Car-Speakers-Vibration-System-Movement.gif)
Vibration System Movement
3. Experimental Ability
![KEPO Anechoic Chamber-1](https://www.kepotech.com/wp-content/uploads/2023/02/消声室1-1024x683.jpg)
Anechoic Chamber
![KEPO Quality Testing System](https://www.kepotech.com/wp-content/uploads/2023/02/DSCF1284-1024x683.jpg)
R & D Equipment
![KEPO R & D Machine - 1.5](https://www.kepotech.com/wp-content/uploads/2023/02/研发3-1-1.5-1024x683.jpg)
Quality Test
4. Automatic Production Line
![KEPO Full Automatic Speaker Production Line-1](https://www.kepotech.com/wp-content/uploads/2023/02/DSCF1171-1024x683.jpg)
Full Automatic Production Line-1
![KEPO Automatic Production Line](https://www.kepotech.com/wp-content/uploads/2023/02/DSCF0447-1024x683.jpg)
Full Automatic Production Line-1
![KEPO Full Automatic Speaker Production Line-3](https://www.kepotech.com/wp-content/uploads/2023/02/DSCF1208-1024x683.jpg)