Bluetooth Neckband Headphones – Hoco ES72 Sport Wireless Earbuds

• Bluetooth Version: 5.4
• Chip: JLAC7003
• Battery Capacity: 200 mAh
• Charging Time: 2 hours
• Usage Time: 30 hours at 80% volume
• Standby Time: 130 hours
• Speaker Size: 10 mm
• Impedance: 32 Ω ± 15%
• Frequency Response: 20–20,000 Hz
• Sensitivity: 92 dB ± 3 dB
• Transmission Range: 10 meters
• Transmission Frequency: 2402–2480 MHz
• Maximum RF Output Power: +4 dB
• Modulation Type: GFSK, π/4-DQPSK
• Product Weight: 31.5 g
• Product Length: 85 cm
• Supported Languages: Chinese and English prompt sounds (double-click multifunction key when not paired)
• Warranty: 3 months (for manufacturing defects)

Size & Measurements (as provided)

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