JBL JBLREFFLPROPBK Headphone Black Adaptive Noise Cancelling with Smart Ambient JBL Signature Sound 6 mics for perfect calls and zero noise IP68 protection and secure fit 30 hours of playtime with Qi-compatible wireless charging Get help just by using your voice Customizable all-access touch control Maximize the comfort to improve the performance Dual Connect + Sync Bluetooth version: 5.0 Driver size (mm): 6.8 IP Code: IP68 Driver sensitivity at 1kHz/1mW (dB): 100 Dynamic frequency response range (Hz): 20 Hz - 20 kHz Impedance (ohms): 16 Weight (g): 14.4 Charging time (hours from empty): 2 Maximum music play time with ANC off (hours): 10 Maximum music play time with ANC on (hours): 8 Bluetooth: Yes Charging cable: Yes Voice Assistant integration: Yes Adaptive Noise Cancelling: Yes Ambient Aware: Yes Built-in Microphone: Yes Charging case: Yes Ear-bud: Yes Hands Free Call: Yes JBL Signature Sound: Yes Rechargable battery: Yes Sweat Proof: Yes Touch Control: Yes True Wireless: Yes Waterproof: Yes Wireless: Yes Headphone, Headset