<p>Features<br>Bluetooth: Yes<br>Adaptive Noise Cancelling: Yes<br>Ambient Aware: Yes<br>Built-in Microphone: Yes<br>Charging case: Yes<br>Ear-bud: Yes<br>JBL Pure Bass Sound: Yes<br>Multi-Point Connection: Yes<br>Rechargable battery: Yes<br>Spatial Sound: Yes<br>Speed charge: Yes<br>Sweat Proof: Yes<br>TalkThru: Yes<br>Touch Control: Yes<br>True Wireless: Yes<br>Voice Aware: Yes<br>Waterproof: Yes<br>Wireless: Yes<br>IP Code: IP68<br>Specification<br>Charging Case IP Code: IPX2<br>Driver size (mm): 10<br>Number of Microphones: 6<br><br>Audio<br>Driver sensitivity at 1kHz/1mW (dB): 108 dB SPL@1 kHz<br>Dynamic frequency response range (Hz): 20 Hz - 20 kHz<br>Impedance (ohms): 16 ohm<br>Passive Frequency Response: N/A<br><br>Dimensions<br>Charging Case Weight (g): 80.5g<br>Earpiece Weight (g): 10.5g<br>Weight (g): 101.5g<br><br>Control and Connection<br>Bluetooth profiles: A2DP V1.4, AVRCP V1.6.3, HFP V1.8<br>Bluetooth frequency: 2.4 GHz - 2.4835 GHz<br>Bluetooth transmitted modulation: π/4-DQPSK, 8DPSK<br>Bluetooth transmitter power: &lt; 10 dBm (EIRP)<br>Bluetooth version: 5.4<br> <br>Battery<br>Charging case battery life (max hours): 36<br>Charging time (hours from empty): 2<br>Maximum music play time with ANC off (hours): 12<br>Maximum music play time with ANC on (hours): 8<br>Maximum play time (hours): 48<br>Speed Charging time (hours): 4<br>Maximum talk time (hours): 6</p> <p>Never hurts, never falls out<br><br>Exercise harder, longer. The flexibility, powerful sound, and rugged design of your JBL Endurance Peak 4 will match you beat for beat. JBL Pure Bass Sound with Spatial Sound fuel your workout from the bottom up, and no matter how intense your moves get, the ergonomic fit of the TwistLock design means they'll always stay in and stay comfortable. Most of all, a waterproof and dustproof IP68 rating means the weather will never give you an excuse to stay home. Block out distractions with Adaptive Noise Cancelling or stay in touch with your surroundings with Ambient Aware. Running in the wind? Your calls will sound perfect as if at home, thanks to the 3 mics on each bud. Up to 48 hours of battery life gives you the musical motivation to run a marathon every day for a week before you need a recharge.<br><br>12 Months Local Manufacturer Warranty</p> <p>Store in dry cool place.</p> <p>China</p>