**Product Specifications:**

**Brand:** PLANTRONICS

**Model:** BLACKWIRE 3225 TOP

**Usage:** Headphones for listening to audio in daily life

**Features:**

- Safe volume levels

- Multiple noise-cancelling technologies

- Environmentally friendly materials

- 8 hours of battery life

- Endurance tested for durability

- Comfortable to wear for extended periods

**Health Considerations:**

- According to the World Health Organization's 2013 report, prolonged exposure to noise levels above 85 decibels can lead to a 50% probability of hearing loss

- Inferior materials in contact with the skin for extended periods can lead to temporary hearing loss

- Globally, 360 million people have hearing disabilities

- 37% of hearing disabilities are closely related to noise exposure

**SoundGuard Technology:**

- Protects against audio spikes

- Detects and eliminates sudden loud signals and electrical noise

- Prevents volume levels from exceeding 118dBA

**Material and Certification:**

- Made with international standard safe materials

- TLC certified product

**Audio Quality:**

- Signature sound quality

- High-definition voice calls

- DSP noise-cancelling microphone for clear and natural voice transmission

- Wideband audio for full-spectrum voice reproduction

- Dynamic EQ for enhanced music experience

**Connectivity:**

- Compatible with various devices such as smartphones, tablets, laptops, and desktop computers via 3.5mm interface

**Design:**

- Lightweight nylon material with a metal frame

- 7-level adjustable headband for a comfortable fit

- 45° swiveling soft headband for a customized fit

**Technical Specifications:**

- Connects to mobile devices, tablets, and other 3.5mm interface devices

- Audio performance includes dynamic EQ and microphone frequency response (100Hz-10kHz) for high-definition wideband voice calls (up to 6,800Hz) and high-fidelity stereo output (C3220/C3225)

- Receives output from 20Hz to 20kHz with enhanced digital signal processing (DSP) and noise-cancelling microphone

- Prevents high-pitched whistles and ensures sound levels do not exceed 118dBA

**Warranty:** 2 years