Esperanza Bluetooth Stereo Headset Libero Black

The Esperanza Libero is a Bluetooth stereo headset finished in black, built around a binaural head-band design that places a speaker on each ear. It is a headphones-with-microphone product, so the same headset that plays your stereo audio also carries an integrated microphone for voice.

Wireless freedom comes from Bluetooth connectivity with an operating range of up to 10 m, and the supported AVRCP profile lets the headset work with playback control commands. Power comes from a 300 mAh Lithium Polymer (LiPo) battery rated for up to 10 h of talk time, and the product's power requirements are 5V DC.

For audio, the Esperanza Libero is specified with a 20 - 20000 Hz headphone frequency range, 105 dB headphone sensitivity, 32 Ohm impedance and a maximum input power of 100 mW. The microphone side is specified with -42 dB microphone sensitivity and a 30 - 16000 Hz frequency range.

Key features

• Wireless Bluetooth headset - Bluetooth: Yes, with AVRCP profile support
• Up to 10 m wireless range for moving around while connected
• Headphones with microphone - integrated mic with -42 dB sensitivity
• Binaural head-band wearing style with a black colour finish
• 300 mAh Lithium Polymer battery rated for up to 10 h talk time
• Stereo audio specs: 20 - 20000 Hz, 105 dB sensitivity, 32 Ohm impedance, 100 mW maximum input power
• Microphone frequency range: 30 - 16000 Hz

Technical specifications

Frequently asked questions

How long does the battery last?

The Esperanza Libero uses a 300 mAh Lithium Polymer (LiPo) battery with a talk time of up to 10 h. Power requirements are 5V DC.

Does it have a microphone?

Yes. It is specified as headphones with microphone, with a microphone sensitivity of -42 dB and a microphone frequency range of 30 - 16000 Hz.

How does it connect and how far can I move away?

It connects wirelessly over Bluetooth and supports the AVRCP profile, with a wireless range of up to 10 m.

What are the audio specifications?

Headphone frequency: 20 - 20000 Hz, headphone sensitivity: 105 dB, impedance: 32 Ohm and maximum input power: 100 mW. The wearing style is a binaural head-band in black.

Is there anything I should be careful about?

The manufacturer's safety warning states: do not disassemble or modify the product yourself.

It is for you if...

• You want a Bluetooth stereo headset with an integrated microphone in a single device
• You prefer a binaural head-band design in black that sits over both ears
• You need up to 10 m of wireless range and up to 10 h of talk time
• You care about documented audio specs: 20 - 20000 Hz, 105 dB, 32 Ohm, 100 mW maximum input power