1. Core Parameters (Based on Official Specifications)
Basic Specifications
Dimensions: Ø36.0±0.3mm × Height 19.0±0.5mm (Ultra-thin design for compact cavities)
Impedance: 4Ω±15% (DCR 3.0Ω±10% @900Hz)
Power: Rated 3W (3.46V drive) / Peak 4W (4V drive)
Frequency Range: F0~20kHz (-10dB, covering full-band voice and music requirements)
Sensitivity: 85±3dB (0.5m/1W, average at 400Hz-1kHz)
Key Performance Validation
Durability: 96-hour white noise load test (3W, 200Hz-20kHz)
Environmental Adaptability: Operating temperature -25℃~+60℃, storage temperature -30℃~70℃
Moisture/Dust Resistance: 24-hour humidity test at 40℃/90-95% RH with no abnormalities
2. Optimized Application Scenarios
Smart Home Control Devices
Voice Interaction Optimization: 250Hz resonance frequency enhances vocal clarity for AI terminals like Tmall Genie and Xiaodu.
Multi-protocol Compatibility: Supports UART/Bluetooth direct connection, reducing system integration complexity.
Security Alarm Systems
High SPL Output: 4W peak power achieves 95dB sound pressure for smoke alarms and access control alerts.
Extreme Environment Stability: Passes -25℃ cold-start test for outdoor reliability in northern regions.
Educational & Entertainment Hardware
Wide Frequency Response: Optimized 800Hz-5kHz range for children's voice reproduction in reading pens and AR glasses.
Mechanical Compatibility: 19mm height + 150±5g weight suits foldable screens and robotic joints.
Vehicle Voice Terminals
EMC Resistance: Passes electromagnetic interference tests to minimize engine noise-induced distortion.
3. Technical Advancements
Dual Magnetic Circuit Drive: 30% faster dynamic response than single-circuit designs, with bass extension to 80Hz.
Industrial-Grade Soldering: Terminals withstand 350℃/3-5s soldering for automotive/industrial PCB reliability.
Smart Power Management: THD <10% at 3W rated power, balancing efficiency and audio quality.
4. Support Services
Customization: Adjustable impedance (4Ω/8Ω), cable length (standard 150±5mm), and connector types.
Rapid Prototyping: 72-hour sample service with frequency response and impedance test reports.