Design and Build

Experience the future of audio with the Tronsmart Sounfii R4 true wireless earbuds, designed for style and comfort. These Bluetooth earphones feature a sleek, space-inspired look in black or beige, weighing just 45g for all-day wear. With an IPX4 rating, they’re sweat-resistant, perfect for workouts or commutes. The ergonomic design and customizable ear tips ensure a snug fit, whether you’re hitting the gym or relaxing on a long flight.

• Futuristic design in black or beige
• IPX4 sweat and water resistance
• Lightweight at 45g
• Ergonomic fit with customizable ear tips

Audio and Features

Dive into crystal-clear sound with the Tronsmart Sounfii R4 earphones, powered by 12mm titanium composite drivers for deep bass and balanced audio. The quad-mic ENC (Environmental Noise Cancellation) technology reduces background noise by up to 90%, making calls sharp even in noisy environments. With Bluetooth 5.3 and smart touch controls, these earbuds offer seamless connectivity and easy access to voice assistants, perfect for music lovers and professionals on the go.

• 12mm drivers for rich audio quality
• Quad-mic ENC for clear calls
• Bluetooth 5.3 connectivity
• Smart touch controls

Battery and Performance

Keep the music flowing with the Tronsmart Sounfii R4’s impressive battery life. These true wireless earbuds deliver up to 7 hours of playback per charge, with the 400mAh charging case extending it to 28 hours. Ideal for long commutes or workouts, they recharge quickly via USB-C. Users praise their reliable performance for calls and music, though some note the case’s lid design could be smoother to open.

• 7 hours per charge
• 28 hours with charging case
• USB-C charging
• Reliable for calls and music

Pricing and Availability

The Tronsmart Sounfii R4 earphones are a budget-friendly choice for premium audio, retailing at around $16.99 on major platforms like AliExpress and Tronsmart’s official site. Early bird discounts have dropped them to as low as $11.99 during sales. Available globally, they’re a steal for anyone seeking high-quality Bluetooth earphones with noise cancellation at an affordable price.

• Retail price: ~$16.99
• Discounted to $11.99 during sales
• Available on AliExpress, Tronsmart site
• Global shipping options