Classification
| OPPO Enco Air4
|
| Classification
|
| Grade
|
C
|
| Calculator version
|
1
|
| Classification date
|
2024-10-28
|
| Information
|
| Name
|
OPPO Enco Air4
|
| Brand by Parent
|
OPPO by OPPO
|
| Generation
|
|
| Model(s)
|
OPPO Enco Air4
|
| Release date
|
2024-05-31
|
| Type/Category
|
Earphone
|
| Website
|
[1]
|
| Status
|
In sale
|
| More
|
| Dimensions
|
|
| Mass
|
|
| Operating system
|
Compatible with most modern smartphones and tablets
|
| Companion App
|
|
| CPU
|
|
| GPU
|
|
| Memory
|
|
| Storage
|
|
| Battery
|
58mAh(Earphone)/440mAh(Earphone case)
|
| Power
|
|
| Charging
|
|
| Display
|
|
| Camera
|
|
| Sound
|
Multiple sound effects options
|
| Connectivity
|
Bluetooth
|
| Device
|
| Criterion
|
Value
|
Proof(s)
|
Comment
|
| Known hardware tampering
|
None
|
[]
|
|
| Known vulnerabilities
|
None
|
[]
|
|
| Prior attacks
|
None
|
[]
|
|
| Updatability
|
None
|
[]
|
|
| Category score
|
2
|
| System
|
| Criterion
|
Value
|
Proof(s)
|
Comment
|
| Authentication with other systems
|
Partial
|
[]
|
|
| Communications
|
Encrypted with up-to-date encryption
|
[]
|
|
| Storage
|
No encryption
|
[]
|
|
| Category score
|
2
|
| User Authentication
|
| Criterion
|
Value
|
Proof(s)
|
Comment
|
| Account management
|
Full
|
[]
|
|
| Authentication
|
Basic
|
[]
|
|
| Brute-force protection
|
Absent
|
[]
|
|
| Event logging
|
Absent
|
[]
|
|
| Passwords
|
Default/Common/Easy to guess
|
[]
|
|
| Category score
|
3
|
Security
Waterproof and dustproof: OPPO Enco Air4 Pro has IP55 level dustproof and waterproof functions
Noise reduction technology: This earphone is equipped with ANC active noise reduction technology, with a maximum noise reduction depth of up to 49dB, covering noise with a frequency bandwidth of 4000Hz.
Comprehensive
Sound quality performance: OPPO Enco Air4 Pro adopts a 12.4mm titanium plated dynamic coil unit, supports LHDC 5.0 ultra clear transmission protocol, and has obtained Hi Res Gold Label certification. Its sound quality is excellent, with rich and full low frequencies, clear mid frequencies, and transparent high frequencies.
Battery life: The earphones can last up to 12 hours on a single charge, and when paired with a charging case, the total battery life can reach 44 hours.
Connection stability: Adopting the latest Bluetooth 5.4 protocol ensures stable connection and low latency between the earphones and devices.
Intelligent function: The earphones support dual device connection and can seamlessly switch between two devices.
Touch operation: The touch area design of the headphones is unique, making it convenient for users to quickly and accurately control. Whether answering calls, switching tracks, or activating voice assistants, all can be achieved through simple touch.
