Headphone 耳筒 / Jay Bird / Freedom Sprint
Freedom Sprint

The Freedom Sprint wireless buds feature premium wireless music and calls, with warm bass tuned to eliminate listener fatigue during long workouts.


Freedom Sprint is tuned with emphasis on sub-bass, while reducing the listener fatigue ranges of mids and extreme treble. The result, warm thumpy beats that let you crank up the music without experiencing listener fatigue common in extended headphone use during lengthy workout sessions at higher volume levels. Keep your music motivating you, not distracting you. Eliminate listener fatigue.


Light-weight, high integrity case construction
Sealed against sweat and moisture
Rubberized overmolded sealed buttons
Tangle-free flat cord

Type: In-Ear Style
Noise-isolation: No
Impedance: 32 Ohm
Output 15mW RMS (with level limit)
Total Harmonic Distortion <5% (1KHz, 10mW)
Protocol: BT 2.0, A2DP, Handsfree, Headset
Speaker sensitivity: 117 +-3dB At 1KHz
Audio Format: 16-bit Stereo

Operating: 14F - 140F (-10C - 60C )
Storage: -22F - 176F (-30C - 80C)
AC power: DC 5V 100mA

Codec: SBC Range: 10 meters/33 feet
Frequency Band: 2.4 GHz
Response Bandwidth 20-20000Hz

No of Paired Devices: 2
Pairing passkey: 0000

Compatible Products
Any A2DP Bluetooth stereo device including iPhone, iPad, iPod Touch, Android, Windows, Blackberry Phones, Moto Actv, iPod nano (now features Bluetooth connectivity), PC, Mac and gaming devices.

See JayBird Bluetooth adapters for non-bluetooth products.
Integrated Microphone
Type: 4mm omni-directional
Sensitivity: -34 dB + /-3dB (1KHz, 0dB = 1V/Pa)

Music Play Time: 4.5 Hrs*
Talk Time: 5 Hrs*
Standby Time: 100 Hrs*
Charging Time: 2 hrs
Charging: USB (included)
Type: 100 mAh Lithium Polymer
* May vary dependent on usage & device

Weight & Dimensions
Width: 16 mm
Height: 33 mm
Depth: 8 mm
Weight: 10 g

Button Controls
AVRCP Music Controls (Play/pause, next, back)
Call Controls (answer, end, reject call)
General (Volume, pair, power)

In The Box
JF4 Freedom Sprint Bluetooth Buds
3 pair secure fit ear cushions
3 pair eartips
USB Cable
Optional ear hooks
User Manual

1 Year Limited Warranty
Lifetime Warranty Against Sweat