DEFENDER Freemotion B510 BT headphones gray DEF635127

The Defender Freemotion B510 is a full-size, wireless Bluetooth headphone in grey that connects to smartphones, tablets and computers. Its closed ear-cup design isolates surrounding noise, so you can enjoy your favourite music undisturbed at home or on the move. Weighing about 100 g, it has a stylish, durable plastic housing made for everyday use.

The 40 mm driver reproduces frequencies from 20 to 20,000 Hz with a sensitivity of 100 dB, delivering clear and dynamic sound. The built-in microphone, rated at 32 dB sensitivity, makes phone calls convenient. According to the manufacturer, the Bluetooth 4.2 connection offers a range of 10 to 15 metres.

The lithium-ion battery provides up to 8 hours of continuous use on a single charge. The headphone also features a 3.5 mm jack, so it can be used with a cable when needed.