The JBL Synchros E50BT is a wireless, over‑ear Bluetooth headphone with a built‑in microphone — designed for music listening, calls, and everyday wireless use.
Specifications
Sound & Drivers: 50 mm dynamic drivers and JBL’s “PureBass” audio signature — delivers deep, punchy bass, clear mids and highs for a full‑range listening experience.
• Frequency Response: ~ 20 Hz – 22 kHz.
• Impedance / Sensitivity: ~ 32 Ω impedance; maximum sound pressure level (SPL): ~ 115 dB @ 30 mW.
• Connectivity: Bluetooth wireless connectivity for wireless music and calls. Also supports wired listening with a detachable 3.5 mm audio cable (included) — useful when battery is low.
• Battery Life: Up to 18 hours of wireless playback from a single charge.
• Charging / Backup Option: Rechargeable lithium‑ion battery; when battery runs out, you can plug in the 3.5 mm cable to keep listening.
• Built‑in Mic & Controls: Ear‑cup‑based microphone + controls (on ear‑cup) allow for hands‑free calls, music play/pause, volume and track control — convenient for phone/tablet use.
• Design & Comfort: Over‑ear design with cushioned leatherette earcups and an adjustable headband — comfortable for extended listening sessions; 3D‑swivel hinges for better fit and comfort.
• ShareMe™ Music Sharing: Feature that lets you wirelessly share audio with another ShareMe‑enabled JBL headphone — you and a friend can listen to the same music from one device.
• Portability & Convenience: Detachable audio cable + collapsible/foldable design (on many versions) makes it easier to carry or store when not in use.