Pro4 Bluetooth headset with 10-20 metre transmission distance

The Pro4 Bluetooth headset is set up for everyday wireless calling and audio use within a barrier-free distance of 10-20 metres. It runs on Bluetooth version JL6936D5.0 and uses a true stereo chip, with high-definition binaural call support for voice-focused use. Working time is 3-4 hours, so it covers shorter listening or calling sessions without needing to stay connected to a charger all the time. The charging warehouse adds 30 days of standby time, which is useful if you keep the headset packed away between uses. With a packing size of 12 x 10 x 3.5 cm, the set is compact enough to fit into a bag or desk drawer.

Bluetooth headset features and quality

The specification set is straightforward and measurable. Instead of vague claims, the product data gives you the Bluetooth version, the transmission distance, the battery capacities and the packing size. That makes it easier to judge whether the headset fits a commute, a desk setup or short calls at home. The included charging bin and charging cable mean the headset arrives with the pieces needed for charging, while the manual and certificate are also part of the box.

Wireless design details

The headset uses Bluetooth version JL6936D5.0, which is listed alongside high-definition binaural call support. Its barrier-free distance is 10-20 metres, so the connected device does not need to stay right beside you during use. That range is practical for moving between rooms in a small flat or for keeping your phone on a table while you answer calls. The true stereo chip is specified in the source text, giving the product a clear technical identity rather than a general wireless label.

Audio and battery details

The speaker is described as a high-quality composite membrane copper ring speaker, which is the exact construction detail provided. The headset battery is pure cobalt 30 mA, while the rechargeable battery in the charging warehouse is pure cobalt 260 mA and includes an IC protection board. Working time is 3-4 hours, and the charging warehouse standby time is 30 days. Those figures give a clear picture of how long the product can operate and how long it can be stored before recharge.

Build and pack details

The pack size is 12 x 10 x 3.5 cm, which is the only measurement supplied in the source text. The package contents are listed clearly: earphone x2, charging bin, charging cable, manual, packaging box and certificate. Nothing extra is added beyond the source data. The inclusion of an IC protection board in the charging battery is a specific construction point worth noting, because it adds a defined electronic protection element to the charging system.

Bluetooth headset uses

This headset is aimed at simple wireless calling and short listening sessions where the stated transmission distance and battery figures matter. It is suitable for users who want a compact set with a charging bin rather than a larger over-ear design. The included two earphones make it a paired listening solution, and the 30-day charging warehouse standby time means it can sit ready between uses.

Call use scenarios

For calls, the key specification is the high-definition binaural call support combined with the JL6936D5.0 Bluetooth version. That gives you a clear set of call-related details to work from. If you need to speak while moving around a room, the 10-20 metre barrier-free distance gives a defined range rather than an open-ended promise. The headset is therefore suited to short office calls, home conversations and other everyday voice use where staying tethered to a cable is inconvenient.

Everyday listening use

In daily use, the 3-4 hour working time suits shorter sessions such as listening on a commute, taking a few calls, or using the headset during part of a working day. The compact 12 x 10 x 3.5 cm pack size helps when space is limited. Because the product includes a charging bin, you can return the earphones to the case after use and keep the setup together. The result is a tidy, low-fuss routine based on the listed battery and charging specifications.

Storage and spare use

The 30-day standby time of the charging warehouse is the standout storage figure. That makes the headset easy to keep on hand without immediate recharging if it has been parked between uses. The certificate, manual and packaging box are included in the package contents, which may matter if you prefer to keep everything together. The product is also available in Black and White, giving two colour options from the supplied option list.

Bluetooth headset benefits

The main benefit here is clear specification. You get a headset with a defined Bluetooth version, a stated 10-20 metre distance, a measured 3-4 hour working time and a 30-day standby figure for the charging warehouse. That makes it easier to compare against other headsets where the numbers are often left vague. The compact packing size and included accessories also help make the purchase easy to understand.

Value over time

Because the product comes with both the charging bin and charging cable, there is no need to source those parts separately from the start. The battery system is also clearly defined, with pure cobalt 30 mA in the headset and pure cobalt 260 mA in the charging warehouse. For a buyer, that detail helps with planning use and charging habits. The 30-day standby time adds a practical storage benefit, especially if you only use the headset in short sessions rather than all day.

Peace of mind from specs

Peace of mind comes from having the numbers in front of you: 10-20 metres of transmission distance, 3-4 hours of working time and an IC protection board in the charging battery. Those details remove guesswork. The headset is not described with vague claims; it is specified with a Bluetooth version, battery capacities and packaging measurements. That level of detail helps you know exactly what is in the box and what kind of daily use it is built for.

Why buy this headset

If you want a Bluetooth headset with simple, stated performance figures, the Pro4 gives you exactly that. Its battery capacity, transmission distance and standby time are all listed in the source data, along with the full package contents. That makes it easier to compare, order and start using without wondering what has been left out. For buyers who prefer clear specifications over marketing fluff, this is the stronger reason to choose it.