Headphones OneOdio Fusion A70 Black — wired 3.5mm jack and Bluetooth, over-ear design

OneOdio Fusion A70 Black are over-ear headphones that combine Bluetooth wireless convenience with a standard 3.5 mm wired connection. The design provides full ear coverage for passive noise isolation and comfortable long listening sessions. These headphones are compatible with smartphones, tablets, laptops and other devices that support Bluetooth or a headphone jack, and they support both music playback and voice calls.

Advantages

The Fusion A70 Black offer dual connectivity options, allowing seamless switching between Bluetooth wireless streaming and a reliable wired 3.5 mm connection. The over-ear cups and soft padding deliver extended comfort, while the closed-back design helps reduce ambient noise. Integrated controls on the earcup simplify call handling and media control without reaching for the connected device. The foldable structure and lightweight construction make storage and transport straightforward.

Suitable for

• Listening to music at home or on the go
• Making and receiving voice calls with compatible devices
• Watching movies or streaming video on tablets and laptops
• Using as a wired backup with devices that lack Bluetooth or when conserving battery

Key specifications

• Form factor: over-ear closed-back headphones
• Connectivity: Bluetooth wireless and 3.5 mm wired jack
• Compatibility: standard Bluetooth-enabled devices, audio sources with 3.5 mm output
• Controls: on-earcup controls for playback and calls
• Design features: padded earcups and adjustable headband for extended comfort

How to use

To use wirelessly, enable Bluetooth on your source device and pair it with the headphones following the pairing procedure described in the user manual. For a wired connection, insert a 3.5 mm audio cable into the headphone jack on the earcup and the other end into the device’s headphone port; wired mode typically overrides Bluetooth. Use on-earcup controls to answer calls, adjust playback, or change volume when supported by the connected device. Charge the headphones as specified to maintain wireless operation.

Usage recommendations

For best audio quality and reliable connection, keep the source device within typical Bluetooth range and minimize obstacles between devices. Use the wired connection when flying or in environments with dense wireless traffic to avoid interference, and take regular breaks during long listening sessions to reduce ear fatigue.