JBL Tune 520BT Wireless on-ear Headphones (Blue) Full Modular 2 Gen 1 port with

2 Gen 1 port with power-off charging

IP66 weatherproof

The Epson LQ-310 also has an improved reliability rating that is an astonishing 67% higher than its predecessor that was already renowned for its dependability

Signature M650

Active PFC (PF > 0

JBL Tune 520BT Wireless on-ear Headphones (Blue) Full Modular 2 Gen 1 port withSPECIFICATION General Specifications Driver size (mm) 33 Number of Microphones 1 Audio Specications Driver sensitivity (dB) 102 dB SPL @ 1kHz 1mW Dynamic frequency response (Hz) 20 Hz 20 kHz Impedance (ohms) 30 Dimensions Audio Cable Length (ft) 0. 7 Audio Cable Length (m) 0. 2 Ear Cup Depth (cm) 1. 7 Ear Cup Depth (in) 0. 7 Ear Cup External Height (cm) 3. 2 Ear Cup External Height (in) 1. 3 Ear Cup External Width (cm) 7. 3 Ear Cup External Width (in)