Stereo earbud specs focus on audio (20Hz-20kHz range, dynamic drivers, deep bass), connectivity (Bluetooth 5.0/5.3 for 10m range, auto-pairing), battery (4-6 hrs buds, 300mAh+ case), and features like ENC mics, touch controls, IPX ratings, and USB-C charging, all delivering wire-free, immersive sound for calls and music. 

Key Specifications Explained

Audio:

Frequency Response: 20Hz-20kHz (standard range of human hearing).

Drivers: Tiny speakers (dynamic drivers common) converting signals to sound.

Sound Quality: Hi-Fi Stereo, Deep Bass.

Connectivity:

Bluetooth Version: V5.0, V5.3 (newer offers better range/stability).

Range: ~10 meters (30 feet).

Pairing: Auto-pairing, True Wireless Stereo (TWS).

Battery & Power:

Buds: ~40mAh capacity, 3-6 hrs playtime.

Case: ~300mAh (or more), multiple recharges.

Charging: USB Type-C.

Features:

Microphone: Yes, often with ENC (Environmental Noise Cancellation) for clearer calls.

Controls: Smart Touch.

Water Resistance: IPX5 (splash/sweat proof) or IPX4.

Display: LED Digital Display on the case.

Design & Build:

Weight: Lightweight (e.g., ~3.7g per bud).

Fit: Ergonomic, secure. 

What They Mean for You

Bluetooth 5.3: Faster, more reliable connection with your devices (Android/iOS).

ENC Mic: Reduces background noise for clear calls, great for noisy environments.

IPX Rating: Lets you use them for workouts without worry.

TWS: No wires between the earbuds themselves; they connect wirelessly.