JBL E55BT Manual

Specifications
Driver size: 50mm
Dynamic frequency response range: 20Hz-20kHz
Sensitivity: 96dB
Maximum SPL: 111dB
Microphone sensitivity @1kHz dB v/pa: -42
Impedance: 32ohm
Bluetooth transmitted power: 0-4dbm
Bluetooth transmitted modulation: GFSK, π/4DQPSK, 8DPSK
Bluetooth frequency: 2.402GHz-2.48GHz
Bluetooth profiles: HFP v1.6, HSP v1.2, A2DP v1.2, AVRCP v1.4
Bluetooth version: V4.0
Battery type: Polymer Li-ion Battery (3.7V, 610mAh)
Charging time: 2 hours
Music play time with BT on: Up to 20 hours
Talk time with BT on: Up to 20 hours
Weight (g): 231.6g
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JBL E55BT Specifications

General

Quantity	1
Wireless receiver interface	3.5 mm
Impedance	32 Ω
Driver unit	50 mm
Ear coupling	Circumaural
Headphone frequency	20 - 20000 Hz
Bluetooth	Yes
Bluetooth version	4.0
Connectivity technology	Wired & Wireless
Battery recharge time	2 h
Continuous audio playback time	20 h
Headset type	Binaural
Product type	Headset
Product color	White
Wearing style	Head-band
Recommended usage	Calls/Music
Microphone type	Built-in