Devia Kintone Series V2 Wireless Bluetooth Headphones (EM039) - Black

Description

The Devia Kintone Series V2 wireless headphones (manufacturer reference EM039) in black finish are a professional-grade portable listening and communication unit, specifically configured for corporate equipment fleets, call centres, workshop technicians, and B2B resale. Developed to offer an excellent compromise between passive acoustic isolation and prolonged comfort, these second-generation headphones optimise employee productivity in noisy environments while freeing them from the constraints of traditional cords.

In terms of acoustic engineering, the Kintone V2 relies on two 40 mm diameter dynamic transducers adjusted to reproduce a balanced sound spectrum, ensuring perfect intelligibility of vocal frequencies during remote maintenance sessions or multimedia streams. The electronic architecture incorporates a high energy-efficiency Bluetooth module, offering a stable wireless connection free from micro-cuts and a standard operating range of 10 metres. The major asset of this model lies in its hardware versatility: it includes an auxiliary 3.5 mm Jack port allowing for an instant switch to an autonomous passive wired mode, ensuring audio signal continuity even when the internal battery is flat.

The mechanical structure of the headphones uses high-density ABS polymer combined with an adjustable padded headband to adapt to all head shapes. The circum-aural ear cups are mounted on foldable pivots that fold flat, reducing spatial footprint when stored in workshop drawers or carrying cases. The main ear cup groups direct physical control buttons for volume and call management, associated with an omnidirectional microphone featuring a basic ambient noise filter.

Technical Specifications

• Manufacturer reference: EM039
• Technology / Material: Shockproof ABS polymer chassis, padded headband and memory foam leatherette cushions
• Wireless compatibility: Universal via Bluetooth (desktop and laptop computers, tablets, Android and iOS smartphones)
• Wired compatibility: Total with any audio source equipped with a 3.5 mm Jack output (passive mode without battery)
• Dimensions: Fold-flat structure with adjustable ear cups to optimise storage space
• Weight: Ultra-light design studied to prevent cervical tension during continuous use
• Power / Charging: Internal battery rechargeable via standard USB power port (DC 5V)
• Audio architecture: 40 mm wide-bandwidth transducers and passive circum-aural isolation
• Control interface: Quick-action mechanical buttons on the ear cup (Volume, track skipping, communication management)
• Microphone: Integrated microphone module for phone calls and corporate video conferencing

Workshop Advice & Usage

For technicians and IT fleet managers, these Devia EM039 V2 headphones are an ideal versatile tool for your audio test stations. Thanks to their integrated 3.5 mm Jack input, you can use them as traditional wired headphones to diagnose sound card faults on bare client computers, without wasting time configuring a Bluetooth pairing. When charging on your technical benches, be sure to use a standard power cable connected to a PC USB port or a classic 5V/1A wall charger; the use of ultra-fast smartphone charging blocks (high voltage) should be avoided to prevent premature wear of the internal battery's thermal protection circuit.