The K31 Neckband Bluetooth 5.0 Sports Earphones deliver up to 40 hours of continuous music playback from a 500 mAh battery — making them one of the longest-lasting wireless earphones in their class. A 10 mm large-magnet speaker delivers clear, bass-rich HIFI sound, while CVC audio technology cancels background noise during calls for crystal-clear voice quality. The lightweight neckband design with soft, ergonomic ear hooks keeps them secure and comfortable through even the most intense workouts. Available in Black/Silver, Obsidian, Black/Red, and Black/Green.

Why You'll Love It

• 40-Hour Playtime: 500 mAh high-capacity battery delivers approximately 40 hours of music and up to 300 hours standby — charge once, listen all week.
• Bluetooth 5.0: Stable, low-latency connection up to 10 metres with fast pairing and multi-point connection support.
• CVC Noise Cancellation: Background noise suppression during calls for clear, hands-free voice quality in any environment.
• 10 mm Large-Magnet Driver: Powerful speaker delivers rich bass and detailed HIFI sound across the full audio range.
• TF Card MP3 Mode: Insert a TF (microSD) card to play music directly without a phone connection.
• Neckband Design: Lightweight, flexible neckband with ergonomic ear hooks for a secure, never-fall-out fit during sport and exercise.
• Simple Button Control: Volume, track change, play/pause, and call answer/reject — all from the inline controls, no phone needed.
• Battery Display: Real-time battery level indicator so you always know your remaining charge.

Perfect For

Runners, gym-goers, commuters, and active users who want long-lasting wireless audio with a secure neckband fit, hands-free calling, and the option to play music directly from a TF card.

Specifications

What's in the Box

1 × K31 Neckband Bluetooth Earphones | 1 × Charging Cable | 2 × Spare Ear Tips | 1 × User Manual