Let nothing stop your workout. Wireless and IPX7 waterproof, the JBL Endurance SPRINT headphones are always up for a run, and with Speed Charge you can get an hour of listening time after charging the 8hr battery for just 10 minutes. Supremely comfortable with FlexSoft™ ear tips and TwistLock™ technology, these secure fit buds were designed from the ground up to amplify your workout. They’re guaranteed never to hurt or fall out, while touch controls let you easily manage music and MagHook™ lets you secure them conveniently close at hand when you’re done using them.
Ear tip material - Silicon Bluetooth version - 4.2
Driver size (mm) - 10.0 Number of drivers per ear -1.0 Driver sensitivity at 1kHz/1mW (dB) -20dB Impedance (ohms) - 16.0
Control and Connection Specifications
Bluetooth profiles - HFP v1.6, A2DP v1.3, AVRCP v1.5 Bluetooth transmitter power - 4 dbm Bluetooth frequency - 2.402GHz-2.48GHz Bluetooth transmitted modulation - GFSK, π/4DQPSK,8DPSK
Dynamic frequency response range (Hz) - 20Hz–20kHz Battery Type Lithium-ion polymer - (3.7V, 120mAh) Charging time (hours from empty) - TBC Speed Charging time (hours) - 2.0 Maximum music play time with ANC off (hours) - 8.0
Rechargable battery - Yes In-ear - Yes Speed charge - Yes Built-in Microphone - Yes Water Proof - Yes Wireless - Yes Hands Free Call - Yes Touch Control - Yes Secure Fit - Yes Twistlock - Yes Siri/ Google Now - No Bixby - No