**Product Specifications:**
**Brand:** Lenovo
**Model:** EW31311
**Color:** Black/Milky White
**Bluetooth Protocol:** A2DP, AVRCP, HFP
**Effective Range:** Approximately 10 meters
**Bluetooth Version:** 5.3
**Sound Pressure Level:** 94+3DBSL(A)
*Note: Data tested under specific conditions by Lecoo Lab, slight variations may occur in actual usage.*
**Key Features:**
1. Comfortable non-in-ear design for extended wear up to 150 hours.
2. Innovative non-in-ear design for comfortable and immersive listening experience.
3. ENC high-definition noise reduction technology for crystal clear calls.
4. Directional sound transmission technology for precise audio delivery.
5. HIFI stereo sound with 14mm titanium film dynamic coil for balanced audio.
6. High elasticity skin-friendly material for lightweight and comfortable fit.
7. Bluetooth 5.3 for stable and low-latency connectivity.
8. Long-lasting battery life with up to 50 hours of playback time.
**Additional Information:**
Features game mode for smooth gaming experience and music mode for high-quality audio.
ENC noise reduction technology for clear and uninterrupted calls.
Compatible with a wide range of devices for seamless connectivity.
Available in black and milky white color options.
*Note: The above information is based on the provided details and specifications.*
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