M39 HD Sound Stereo Earbuds LED Display With Charging box

• True Wireless Stereo (TWS) earbuds with high-quality audio output: delivers HD sound for both music and calls (footprint suggests “HD Sound” in the model name).  
• Comes with a charging case (charging box) that features an LED digital display showing battery/charge levels for the case (and possibly each bud).  
• Wireless connectivity: Bluetooth version commonly cited as Bluetooth 5.1 (some sources say 5.3) for stable pairing and lower latency.  
• Charging case with large capacity: One listing mentions a “2000 mAh” power-bank style case.  
• Additional features:
  
• Touch control input for the earbuds – allowing tap operations to play/pause, skip tracks, answer calls.  
• Noise-reduction / ENC (environmental noise cancellation) microphone for clearer calls.  
• Water resistance rating in some listings (e.g., IPX7) for workouts/outdoor use.  
• Wide compatibility: works with Bluetooth devices (smartphones, tablets, etc).  

Typical Specifications

• Charging case battery: ~1200 mAh in some spec sheets.  
• Playtime: quoted around 6-12 hours of continuous use (varies by listing) for the earbuds alone, with longer standby when in charging case.  
• Working distance: approx ≥10 m (~30 ft) typical Bluetooth range.  
• Frequency response: often listed as 20 Hz-20 kHz for stereo reproduction.  
• Charging input: 5 V (standard USB/Type-C usually) for the case.  

Design & Usage Notes

• The LED display on the charging case is a nice touch: it lets you see how much battery remains in the case (and sometimes the earbuds) at a glance.
• Because the case may also function like a small power-bank (depending on version), you may be able to charge the earbuds multiple times before recharging the case.
• Touch controls reduce the need for physical buttons (which might improve durability / water resistance).
• If you plan to use them for active use (gym, outdoors) then the IPX rating (e.g., IPX7) is beneficial — but check the exact variant you have.
• Since they’re a budget/unbranded (or “no-brand”) type item (based on listings in Pakistan), quality, reliability and support may vary: always check seller reviews, warranty/return policies, battery health after some cycles.