The JOYROOM JR-T03S PRO (NX3) is a stylish pair of true wireless stereo (TWS) earbuds designed for everyday portability and convenience. Finished in white, the earbuds come with a slim red charging case that adds a splash of colour and easy portability. Equipped with 13 mm dynamic drivers, the earbuds deliver immersive sound with strong bass and clear highs. The Bluetooth 5.x (listed as 5.2 in some sources) ensures stable wireless connectivity and lower power consumption. The charging case has a 360 mAh capacity while each earbud is rated at around 30 mAh (in some listings 45 mAh), supporting around 7 hours of music playback at ~70% volume as claimed by the manufacturer. 

Key Features

• Bluetooth version: 5.2 (in many listings)
• Driver size: 13 mm dynamic speaker drivers
• Speaker sensitivity: 113 ± 3 dB
• Microphone sensitivity: –42 ± 3 dB
• Frequency response range: 20 Hz – 20 kHz
• Noise reduction: approx. 25 dB (passive/analog noise reduction)
• Earbud battery capacity: ~30 mAh (some listings 45 mAh)
• Charging case battery capacity: ~360 mAh
• Music play time: up to ~7 hours (at ~70% volume)
• Charging time (earbuds & case): approx. 1 hour each
• Materials: ABS + silicone for comfort and durability
• Colour: White earbuds + Thin Red Case