JBL Synchros E40 BT vs JBL Quantum 400 – Specs, Price & Comparison (2026)

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Brand	JBL	JBL
Model No	Synchros E40 BT	Quantum 400
Wired / Wireless	Wireless Headphone Specification	Wireless Headphone Specification
Headphone Type	Over Ear	Over Ear

Magnet Type	Neodymium	Neodymium
Driver Diameter	40 mm	50 mm
Impedance	32 Ohms	32 ohm
Sensitivity	114 dB/mW	98dB1mW
Frequency Response	20 - 20,000Hz	20 Hz - 20000 kHz
Maximum Power Input	30 mW	30 mW
Noise Cancelling	NA	NA

Wireless Technology	Bluetooth
Bluetooth Version	3.0
Compatible Profiles	A2DP, AVRCP, HFP v1.6, HSP v1.2
Supported Codecs	NA
Battery Type	Lithium-ion rechargeable battery
Bluetooth Range	2.402 â€“ 2.480GHz
Battery Life	Talktime : 24 Hrs Music Time : 16 Hrs
Charging Time	NA

Available Colors	Black, White, Blue, Red	Black
Connector Plating	3.5 mm Gold Plated Plug	3.5 mm
Cable	NA	Type-C To Type-A Cable
Weight	205 g	274 gm
Other Features	- JBL Bluetooth Headphone is compatible with your choice of either iOS or Android devices giving you the flexibility you need for your listening pleasure - ShareMe : Take your music social. Stream music wirelessly to another ShareMe-equipped headphone.	Live the game with JBL QuantumSURROUNDTM and DTS. JBL QuantumSOUND Signature gives you a true audio edge. Play even longer in memory foam comfort. Voice focus directional flip-up boom microphone. Game-chat dial for seamless communication. Made for your favorite platforms. User-friendly JBL QuantumENGINE PC software suite.
	Compare JBL Synchros E40 BT with: Skullcandy Sesh Evo Skullcandy Method ANC Skullcandy Dime 2 True Wireless Earbuds Skullcandy Cassetteâ„¢ Wireless Skullcandy Smokinâ€™ BudsÂ® True Wireless Earbuds	Compare JBL Quantum 400 with: Skullcandy Sesh Evo Skullcandy Method ANC Skullcandy Dime 2 True Wireless Earbuds Skullcandy Cassetteâ„¢ Wireless Skullcandy Smokinâ€™ BudsÂ® True Wireless Earbuds

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