Pro4 Bluetooth Headphones: Wireless Earphones with 5.0 Connectivity, HD Calls, and 30-Day Standby

The Pro4 Bluetooth headphones offer a straightforward wireless audio solution for calls and music, centred on practical performance metrics. They employ a Bluetooth 5.0 chip (model JL6936D) to manage connectivity, supporting stable true stereo audio transmission. A key feature is the provision of high-definition binaural call quality, designed to make voice conversations clear through both earpieces. The set is complete with a charging case that not only recharges the earphones but also maintains a standby charge for up to 30 days, providing extended readiness between uses. Available in classic black or white, these headphones are packaged with all necessary accessories for immediate use.

Features and Construction

The design of the Pro4 headphones focuses on core wireless functionality and audio delivery, using specific components detailed in the product specifications.

Material and Build

The audio driver within each earpiece is a high-quality composite membrane copper ring speaker. This component is responsible for sound reproduction for both music and voice calls. The electrical system is powered by batteries using pure cobalt chemistry, with a 30 mAh cell in each earpiece for operation and a larger 260 mAh cell in the charging case, which includes an integrated circuit (IC) protection board to manage safe charging processes.

Size and Practical Fit

The product's primary physical measurement provided is for its packaging, which measures 12 cm in length, 10 cm in width, and 3.5 cm in depth. This compact size indicates a portable product designed for easy transport and storage. The earphones themselves are a standard in-ear wireless design, offered in two neutral colour options—black and white—to suit different personal preferences.

Uses and Placement

With their wireless design and call-focused features, these headphones are suited for various everyday scenarios where hands-free communication or personal audio is needed.

Event or Professional Use

The high-definition binaural call capability makes these headphones a practical tool for teleconferences, remote work calls, or any situation where clear two-way voice communication is important. The 10 to 20 metre barrier-free transmission distance allows the user moderate mobility within a room or office space while remaining connected to their audio source, useful for presentations or multi-tasking during calls.

Everyday Home Use

For personal use, the headphones provide a tangle-free way to listen to music, podcasts, or audiobooks from a smartphone or tablet while doing household chores, exercising at home, or relaxing. The true stereo chip aims to deliver a balanced audio experience for entertainment. The 3 to 4 hours of working time per charge covers the duration of most common daily activities or commutes.

Benefits and Buying Value

The value of the Pro4 headphones lies in their defined wireless performance, included charging system, and the convenience of a complete ready-to-use package.

Reuse and Low Maintenance

The inclusion of a dedicated charging case with a substantial 260 mAh battery and protection circuitry simplifies power management. The 30-day standby time of the case means the headphones can be left unused for extended periods and still retain charge, reducing the frequency of needing to recharge the case itself. The provided charging cable and storage box aid in organisation and care of the set.

Why Choose This Product

For buyers seeking wireless headphones with explicitly stated technical specifications, the Pro4 model provides clear figures for battery life, range, and component details like the Bluetooth 5.0 chip and speaker type. The package is comprehensive, including two earphones, the charging case, cable, and documentation. The choice between black and white colour options offers a basic level of personalisation for this functionally focused audio accessory.