• Bluetooth-compatible 5.2 chip, faster and more stable transmission
• Full frequency Φ40mm white porcelain horn, pure sound quality. Shocking stereo sound effect, excellent reproduction of clear and delicate human voice
• Comfortable high-protein earmuffs, close to the skin, breathable, not stuffy, comfortable to wear all-day
• Retractable head bow, suitable for different head shapes
• Portable and foldable, easy to store, more convenient to carry, does not take up space
• 250mAh low-power battery, long-lasting battery life, no need for insufficient power supply, and the use time can last up to 20 hours
• Support all devices with Bluetooth-compatible function, and support active 3.5 input

Specifications:

• Bluetooth-compatible Chip: JL-AC7003F4
• Bluetooth-compatible Version: V5.2
• Sensitivity: 103dB±3dB
• Drive Unit: 40mm
• Working Frequency: 2402-2480MHZ
• Frequency Response: 20HZ-20KHZ
• Impedance: 32Ω
• Transmission Distance: ≥10m
• Battery Capacity: 250mAh
• Charging Time: About 2H
• Standby Time: About 322H
• Music Time: About 20H (70% volume)
• Call Time: About 15H (70% volume)
• Charging Input Standard: USB, DC 5V 500mA
• Support Bluetooth-compatible protocol: HFP1.5/HSP1.1/B2DP1.3/AVRCP1.5