**Product Specifications:**
**Brand:** OKSJ
**6 Major Purchase Reasons:**
1. Intelligent deep noise reduction with dual-microphone ENC noise reduction.
2. Crystal clear calls with silicone memory neckband for comfort.
3. Water-washable and bacteria-resistant with memory steel frame.
4. Nano-carbon waterproof material for durability and hygiene.
5. Bluetooth 5.3 for stable connection and low latency.
6. Up to 100 hours of continuous music playback with 800mAh battery.
**Features:**
- Water-resistant and easy to clean with 2024 nano-carbon waterproof technology.
- Caller ID announcement for safe driving.
- Fast charging within 2 hours.
- 10mm super-sensitive dynamic coil for immersive audio experience.
- Expertly tuned by global sound engineers for rich audio quality.
- Dolby Atmos, Hi-Res, and Hi-Fi audio certification for high-resolution sound.
- Magnetic design for tangle-free storage and easy access.
- One-touch control for voice assistant, volume adjustment, track selection, and call management.
**Technical Specifications:**
- **Product Type:** Neckband Bluetooth Earphones
- **Model:** A20
- **Bluetooth Version:** 5.3
- **Transmission Distance:** 10-15m
- **Battery Capacity:** 800mAh
- **Playback Time:** Up to 100 hours
- **Charging Time:** Approximately 2 hours
- **Standby Time:** Up to 365 days
- **Supported Protocols:** A2DP/HFP/HSP/AVRCP
- **Frequency:** 2.4-2.480GHz
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