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The INCA IBK-503S wireless Bluetooth headphones in black provide hands-free calling and music playback with a frequency response of 20–20,000 Hz. Designed as lightweight head-band headphones (0.231 kg), they combine practical battery life with clear audio suitable for daily use and extended listening sessions.

Advantages

These headphones use Bluetooth 5.3 for a stable wireless connection and include a built-in 400 mAh battery to support prolonged use. With a nominal impedance of 32 Ω and sensitivity around 118 dB, they are engineered to reproduce a wide frequency range for clear vocals and balanced music. The black head-band design offers a comfortable fit for extended wear.

Suitable for

• Phone calls and hands-free communication
• Listening to music and podcasts
• Everyday use at home, work, or commuting

Key specifications

• Model: INCA IBK-503S
• Connectivity: Wireless Bluetooth 5.3
• Frequency response: 20–20,000 Hz
• Impedance: 32 Ω
• Sensitivity: 118 dB
• Battery: built-in 400 mAh
• Wearing style: Head-band
• Color: Black
• Weight: 0.231 kg

How to use

Charge the headphones fully before first use using the supplied cable. Turn on the device and enable Bluetooth on your phone or other audio source, then select “INCA IBK-503S” from the available devices list. Adjust volume and playback using the onboard controls; use the call button to answer or end calls. After use, power off the headphones to conserve battery.

Recommendations

Charge regularly and avoid exposing the headphones to extreme temperatures or moisture. Clean ear pads with a dry soft cloth and store the headphones in a protective case when not in use to prolong lifespan.