Dual USB Ports QC3.0 Quick Charge Car Charger with Bluetooth Earphone

Bluetooth: V5.0
Frequency range: 2.400GHz-2.483GHz
Sensitivity: 113dB SPL±3dB
Frequency response range: 20HZ-20KHZ
Headphone battery capacity: 35mAh
Impedance: 32Ω
Rated power: 3mW
Drive unit: φ10mm
Playing time: about 3H (70% volume)
Talk time: about 3H (70% volume)
Automatic shutdown time: 1 minute when not connected
Charging current: about 30mA±15mA
Compatible with: Android/iOS smartphones and tablets
Built-in wireless earphone, support Bluetooth call/talk, ergonomic semi-in-ear design, comfortable to wear.
Smart touch, one key to summon Siri voice assistant, convenient and quick.
Brand new Bluetooth 5.0, low power consumption, faster and more stable transmission.