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If you're passionate about IT and electronics, like being up to date on technology and don't miss even the slightest details, buy Wireless Headphones Aiwa HST-250BT/BK Black at an unbeatable price.. Characteristics:. Hands free function. Wireless. Foldable. Built-in microphone. Removable cable. Plug and play. 32 Ohm. Built-in battery. Foldable: Yes. Headphones:. 32 Ohm. Binaural. Range: 10 m. Type:. Headband. Wireless Headphones. Headphones with Microphone. Headphones with Headband. Built-in microphone: Yes. Frequency:. 20-20000 Hz. 20 - 20000 Hz. Colour: Black. Product with plug: Yes. Type of plug: Plug EU. Connectivity:. Bluetooth. Bluetooth 5.0. Connections:. USB. Micro USB. Jack 3.5 mm. Type of headphones: External circumaural. Voltage: 3,7 V. Material: Nylon. Includes:. Cable Micro USB. Case. Cable length: 1,5 m. Approx. charging time: 2 hours. Compatible memory cards: Micro SD. Driver: 40 mm. Maximum memory card size: 32 GB. Battery: Yes. Recommended use: Calls and music. Battery type: Litio Ion. Approx. autonomy: 12 hours. From 37,81 / m