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Introductory paragraph: The Pro4 Bluetooth headset is engineered for reliable, hands-free communication and audio. It utilises Bluetooth 5.0 technology with a JL6936D chipset to maintain a stable connection at a barrier-free distance of up to 20 metres. The high-definition binaural call feature ensures your voice is transmitted clearly, while the true stereo chip provides an immersive listening experience for music and podcasts. With a 3-4 hour working time per charge and an impressive 30-day standby time from the charging bin, these earbuds are built for daily use without constant battery anxiety.
Brief section introduction with specific content preview: This section details the precise technical specifications and construction elements that define the Pro4's performance. We will examine the audio driver technology, battery composition, and the chipset responsible for its wireless stability and sound quality.
Brief section introduction with specific usage scenarios: The Pro4's blend of call clarity, wireless range, and extended battery life makes it suitable for various professional and personal situations. From managing remote work calls to enjoying audio content during a commute, its features address specific user needs.
Brief section introduction with main benefits overview: Investing in the Pro4 headset brings measurable advantages in convenience, reliability, and cost-effectiveness over time. The specific technical choices in its design translate directly to a consistent user experience and reduced long-term hassle.
Pro4 Bluetooth Headset with True Stereo Chip and 30-Day Standby for Hands-Free Calls with Clear Binaural Audio up to 20 Metres
£36.98
Pro4 Bluetooth Headset: True Wireless Earbuds with 30-Day Standby and 20-Metre Range

Features and Build Quality of the Pro4 Earbuds

Audio Driver and Speaker Design
Design content: The core of the Pro4's audio output is its high-quality composite membrane copper ring speaker. This specific driver construction combines a lightweight composite diaphragm with a copper voice coil. The design aims to balance responsiveness for clear vocal frequencies in calls with sufficient range for music. The copper ring component helps in efficient power transfer from the chipset, contributing to the headset's overall clarity and minimising audio distortion during use.Bluetooth Connectivity and Chipset
Technical content: Connectivity is managed by a JL6936D Bluetooth 5.0 chipset. This version provides improved energy efficiency over older standards, directly supporting the long 30-day standby time. The chipset enables a true wireless stereo (TWS) experience, allowing each earpiece to operate independently or together. The specified barrier-free transmission distance of 10-20 metres is typical for Class 2 Bluetooth devices, offering reliable coverage for most indoor environments like open-plan offices or homes.Battery Construction and Safety
Quality content: Power is supplied by pure cobalt lithium batteries. The earpieces each house a 30 mAh cell, providing the measured 3-4 hours of working time. The charging bin contains a larger 260 mAh battery with an integrated circuit (IC) protection board. This board is a key quality feature, as it manages charging cycles to prevent overcharging, over-discharging, and short circuits, thereby protecting the battery cells and enhancing their long-term durability and safety.Practical Applications for Work and Leisure

Professional and Remote Work Use
Professional content: For remote workers or professionals on the move, the 20-metre range allows you to step away from your computer to fetch a document or make a coffee during a conference call without dropping out. The binaural call technology ensures your colleagues hear you clearly, reducing the need for repetition. The 3-4 hour battery life comfortably covers most extended meetings or a series of shorter calls throughout a work session before needing a top-up in the charging bin.Everyday Listening and Commuting
Consumer content: For everyday use, the lightweight design and true stereo sound create a private listening space. The snug fit, aided by the compact earpiece design, helps passively block ambient noise on a busy train or bus. The tactile experience of placing the earpieces into the magnetic charging bin provides a satisfying, secure click, ensuring they are charging for the next use. The 30-day standby means you can leave them in a bag or drawer for weeks and they'll still have power when you next need them.Versatility for Multiple Devices
Versatility content: The Bluetooth 5.0 compatibility allows the Pro4 to pair seamlessly with a wide range of devices beyond smartphones. You can easily connect them to a laptop for video conferences, a tablet for watching films, or a smart TV for late-night viewing without disturbing others. The simple pairing process means switching between your personal phone and a work laptop can be done quickly, making the earbuds a versatile single audio solution for multiple tech ecosystems in your home.Long-Term Benefits and User Value

Value Through Battery Longevity
Value content: The use of pure cobalt batteries and the IC protection board in the charging bin is a direct investment in longevity. These components are designed to maintain a stable charge capacity over hundreds of charge cycles. Compared to earbuds with shorter standby times or less robust battery management, the Pro4 reduces the frequency of 'panic charging' and the likelihood of needing a premature replacement due to battery failure, offering better long-term value for the price.Satisfaction from Reliable Performance
Satisfaction content: The confidence that your earbuds will work when needed is rooted in the 30-day standby specification. This peace of mind is particularly valuable for occasional users or those who keep a pair for specific tasks, like online interviews or weekly podcasts. Knowing the earbuds will hold their charge for a month in a drawer eliminates the minor stress of pre-charging before an important call, allowing you to focus on the conversation itself.Reason to Choose the Pro4
Closing content: Choose the Pro4 Bluetooth headset for a combination of wireless reliability, clear communication, and exceptional battery management. The specific 20-metre range, 3-4 hour talk time, and month-long standby are measurable features that deliver tangible convenience. It is a practical audio tool designed to perform consistently, keeping you connected without constant maintenance or charging interruptions.