Amazon.com: Customer reviews: JBL Synchros E40BT, Bluetooth, On-Ear Headphones with JBL Signature Sound, Purebass Performance, Wireless Shareme Music Sharing and a Superior Fit, Black
JBL Synchros E40BT (Black) On-ear Bluetooth® headphones at Crutchfield
JBL Synchros E40BT Reviews, Pros and Cons | TechSpot
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JBL Synchros E40BT Repair - iFixit
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Amazon.com: V-MOTA Earpads Compatible with JBL E40 E40BT Wireless,Bluetooth Music Headphones,Replacement Ear Pad Repair Parts (Black) : Video Games
Product Review: JBL Synchros E40BT Bluetooth Headphones - GeekDad
Amazon.com: Replacement Charging Power Supply Cable Cord Line Compatible with JBL Synchros E40BT E50BT J56BT S400BT S700 Headphones : Electronics
Amazon.com: USB Charger Power Supply Charging Cable for JBL Synchros E40BT Headphone Headset : Electronics