OPPO Enco X4 Earbuds

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The OPPO Enco X4 is a premium in-ear wireless earbud system featuring an 11mm dynamic bass driver + 6mm tweeter in each earbud, adaptive active noise cancellation, Bluetooth 6.1, LHDC audio, spatial audio, and four-microphone AI call noise reduction.

With dual-device connectivity, IP55 dust and water resistance, and up to 53 hours of total playback with ANC off using AAC, the Enco X4 is designed for everyday listening, calls, commuting, and immersive entertainment.

Dual-Driver Acoustic Architecture – An 11mm dynamic bass driver and a 6mm treble driver work together to deliver rich, detailed sound with a wide 10Hz–40KHz frequency range. Enjoy deep bass, clear vocals, and extended highs.

Adaptive Active Noise Cancellation – Multiple ANC modes including Smart Switch, Deep ANC, Medium ANC, Mild ANC, Transparency, and Adaptive let you control your listening environment. Whether you need total focus or full awareness, the Enco X4 adapts.

LHDC High-Resolution Audio – Supports LHDC codec for near-lossless wireless audio on compatible devices. Also supports AAC for broad compatibility.

Four-Mic AI Call Noise Reduction – 3 silicon microphones + 1 VPU (Voice Pickup Unit) microphone work together with AI algorithms to isolate your voice and suppress background noise, ensuring clear calls even in noisy places.

Spatial Audio – Earbud-based spatial audio creates an immersive, directional soundstage for movies, music, and games.

Bluetooth 6.1 & Dual-Device Connection – Latest Bluetooth version for stable, low-latency connectivity. Connect to two devices simultaneously and switch seamlessly between them.

Quick Wired Charging – The charging case charges via USB Type-C and takes about 65 minutes to fully charge both the case and earbuds.

IP55 Dust & Water Resistance – Resists sweat, splashes, and dust. Ideal for workouts, commuting, and outdoor activities.

Lightweight & Comfortable – Each earbud weighs only 5.6g (±0.3g), and the complete set weighs 53g. The in-ear design with multiple ear tip sizes ensures a secure, comfortable fit.

Specifications:

Brand: OPPO

Model: ETEM1

Product Type: Wireless In-Ear Earbuds

Wearing Style: In-Ear

Audio Configuration: Stereo, both ears

Drivers:

11mm dynamic bass driver
6mm high-frequency driver

Frequency Response: 10Hz–40kHz

Active Noise Cancellation: Supported

ANC Modes: Smart Switching, Deep, Moderate, Light, Transparency, Adaptive

Spatial Audio: Supported on earbuds

Bluetooth: 6.1

Wireless Range: Up to 10m

Dual-Device Connection: Supported

Codecs: AAC, LHDC

Microphones: 4 total

3 silicon microphones
1 VPU microphone

Call Noise Reduction: Four-microphone AI call noise reduction

Dust & Water Resistance: IP55

Charging Port: USB Type-C

Charging Time: Approximately 65 minutes for earbuds + charging case via wired charging

Charging Case Battery Capacity: 576mAh

Earbud Weight: Approx. 5.6g ±0.3g per earbud

Charging Case Weight: Approx. 41.8g ±2g

Total Weight: Approx. 53.0g ±2g

Overall Dimensions: 63.40 × 49.50 × 25.55mm