Overview: The JBL Synchros E40BT Bluetooth headphones offer
convenience and performance in one stylish and comfortable package. With ShareMe
technology, you can even share your experience with another set of headphones. The
E40BTs have a built-in Lithium-ion rechargeable battery that provides all day
music playback capability. When the battery becomes exhausted, you can plug in
the supplied auxiliary cable and continue listening.
Drivers: The Synchros E40BT over-the-ear headphones feature large
40mm drivers with PureBass performance in a lightweight closed design. The 32-ohm drivers give you
crystal-clear stereo for enjoying your music or carrying on a phone
Bluetooth: The Synchros E40BT supports Bluetooth
3.0, with A2DP v1.3, AVRCP v1.5, HFP v1.6, and HSP v1.2. The left ear cup is
equipped with a microphone featuring Konnexx echo-cancellation technology to
give you a clean connection and clear, hands-free calling. The headphones are compatible with iPad (mini, 3rd and 4th gen), iPhone (5s, 5c, 5, and 4s), iPod touch, MacBook Air, MacBook Pro, Mac mini, Android 1.5 Cupcake to Android 4.4 KitKat, and Blackberry 1.0 to Blackberry 10 OS.
ShareMe: JBL's exclusive ShareMe technology lets you
wirelessly and simultaneously share your music with another ShareMe-enabled
headphone. When you are paired with a Bluetooth source device, you can then add
a second pair of headphones and listen to the same source at the same time--a
concert for two. ShareMe can be enabled using two E40BT headphones, a E40BT and an
E50BT, or two E50BT headphones.
On-board Controls: The headphones' left ear cup includes a
4-way Multi-function Button (MFB) that lets you control your music playback and
- Press MFB up/down: Raises volume up or down
- Press MFB forward:
- Music: 1x play/pause; 2x next track; 3x previous
- Phone Calls: short press answer call; long press
reject call; manage 2 calls at same time
- Press and hold MFB forward: 1x fast forward; 2x fast
- Press MFB backward: ShareMe function
Battery: The built-in 3.7V Lithium-ion rechargeable battery
(610 mAh) provides approximately 16 hours of music playback time, or 24 hours of
phone talk time. The battery charges in approximately 3 hours via the included USB cable.
Specifications: The Synchros E40BT has the following specs:
- Frequency Response: 20-22kHz
- Maximum SPL: 114dB @ 30mW
- Impedance: 32 ohms
- BT Frequency Range: 2.402 - 2.480 GHz
- Weight: 7.23 ounces
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