Devia Bluetooth headphones EM039 Kintone — over-ear, wireless, Black

Devia Bluetooth headphones EM039 Kintone are over-ear, wireless headphones designed for everyday listening. The over-ear design and soft touch materials provide passive noise isolation and comfortable wear during extended use. Bluetooth 5.0 connectivity enables cable-free audio streaming and hands-free calls via the built-in microphone. With an ergonomic foldable form factor and a neutral black finish, these headphones suit home, office and travel use.

Advantages

The EM039 Kintone delivers reliable Bluetooth 5.0 pairing and a wireless range up to approximately 10 m for stable connection with smartphones, tablets and laptops. Soft ear cushions and a padded headband reduce pressure on the ears for long listening sessions. A rechargeable battery provides extended playback time, and the integrated microphone supports clear voice conversations. The construction uses pleasant-to-touch materials for a neat appearance and everyday durability.

Suitable for

• Listening to music and podcasts at home
• Hands-free phone and video calls
• Office work and remote meetings
• Commuting and travel where passive noise isolation is useful

Key specifications

• Form factor: over-ear
• Wireless standard: Bluetooth 5.0
• Wireless range: up to 10 m
• Battery operating time: up to 18 hours
• Charging time: about 4 hours
• Battery capacity: 300 mAh (note: secondary spec 200 mAh appears in some sources)
• Built-in microphone for voice calls
• Color: black

How to use

Charge the headphones before first use until the battery is full (charging time around 4 hours). Power on the headphones and enable Bluetooth pairing mode following the device indicators; then select the Devia EM039 Kintone entry on your smartphone, tablet or computer. Adjust volume and playback from the connected device or on-headphone controls if available. Use the built-in microphone for calls—answer and end calls using the headphone controls. After use, power off the headphones to conserve battery; store them in a dry place away from direct heat.

Usage recommendations

For best battery life, fully charge the headphones before the first use and avoid leaving them discharged for long periods. Keep ear cushions clean by wiping with a soft, dry cloth; avoid using liquids or abrasive cleaners. When using in noisy environments, allow the ear cushions to create a seal for passive noise isolation rather than increasing volume to harmful levels.