Esperanza Bluetooth Stereo Headset Libero Black

Presented in black, the Esperanza Libero is a Bluetooth stereo headset that uses a binaural head-band format, meaning one speaker sits over each ear. As a headphones-with-microphone product, it not only delivers your stereo audio but also incorporates a built-in microphone for voice use.

Bluetooth connectivity, with an operating range of up to 10 m, provides the wireless freedom, while the AVRCP profile that is supported allows the headset to respond to playback control commands. A 300 mAh Lithium Polymer (LiPo) battery, rated for up to 10 h of talk time, supplies the power, and the product's power requirements are 5V DC.

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

• Product type: Headphones with microphone
• Headset type: Binaural
• Wearing style: Head-band
• Product colour: Black
• Bluetooth: Yes
• Bluetooth profiles: AVRCP
• Wireless range: 10 m
• Headphone frequency: 20 - 20000 Hz
• Headphone sensitivity: 105 dB
• Impedance: 32 Ohm
• Maximum input power: 100 mW
• Microphone frequency: 30 - 16000 Hz
• Microphone sensitivity: -42 dB
• Battery technology: Lithium Polymer (LiPo)
• Battery capacity: 300 mAh
• Talk time: 10 h
• Power requirements: 5V DC
• Safety warning: Do not disassemble or modify the product yourself.

Frequently asked questions

How long does the battery last?

The Esperanza Libero is fitted with a 300 mAh Lithium Polymer (LiPo) battery offering a talk time of up to 10 h. Its 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