Product Name: ACEFAST N6 Neck-Hanging Wireless Earphones Bluetooth Version: v5.4 Audio Protocols: SBC / AAC Transmission Distance: Up to 10 meters Driver Size: 14mm Sensitivity: 110dB ± 3dB Frequency Response: 20Hz–20kHz Battery Capacity: 1000mAh Input: DC 5V⎓0.8A (USB-C) Charging Time: 1.5 hours Working Time: 130 hours music playback (at 50% volume), 200 hours standby Material: Casing – PC + ABS; Cable – silicone sheath Size: 135 × 195 × 15 mm Weight: 63 grams Waterproof Rating: IPX4 Certification: CE, RoHS, FCC, UKCA, EAC Battery Feature: Extra-large capacity, one charge per month Gaming Mode: Ultra-low latency with audio-visual sync (double-click power button) Bass Mode: Cinema-level bass boost (triple-click power button) Display: LED digital display for battery and volume monitoring Fast Charging: 10 minutes charge provides 20 hours of use Ear Fit: Ergonomic in-ear design for comfort and secure fit during movement Neckband: Skin-friendly silicone with 120° ergonomic curve Storage: Automatic magnetic absorption to prevent tangling