JBL JBLT520BTPURAM-Z Tune 520BT Wireless on-ear Headphones, Purple - Certified Refurbished DescriptionThe JBL Tune 520BT headphones stream powerful JBL Pure Bass sound thanks to the latest 5.3 BT technology. Easy to use, these headphones provide up to 57 hours of pure pleasure and an extra 3 hours of battery with just 5 minutes of charge. Download the free JBL Headphones App and customize your sound through the EQ, while Voice Prompts guide you through the headphones features. Manage calls, sound and volume from the earcup, thanks to the convenient button control. If a call comes in while you are watching a video on another device, the JBL Tune 520BT seamlessly switches to your mobile device, so you never miss a call. Lightweight and comfortable even after hours of listening, the JBL Tune 520BT headphones fold flat in your backpack to follow you everywhere. Features33mm DriversMulti-Function Voice Assistant ButtonBuilt-In Mic for Hands-Free CallsUp to 57 Hours of Battery Life5-Minute Fast Charge for 3 Hours of PlayCustomizable EQ via JBL Headphones AppBluetooth 5.3 Technology Brand JBL Model name TUNE 520BT Form factor Over Ear Connectivity technology Wireless Wireless communication technology Bluetooth Special feature Fast Charging Included components Cable Age range (description) Adult Material Plastic Connector ‎USB Type C Material Type ‎Plastic Size ‎One Size Hardware Platform ‎Tablet Driver size (mm) 33 Number of Microphones 1 Driver sensitivity at 1kHz/1mW (dB) 102 dB SPL@ 1kHz 1mW Dynamic frequency response range (Hz) 20 Hz – 20 kHz Impedance (ohms) 30 Bluetooth version 5.3 Bluetooth profiles HFP 1.7.2, AVRCP 1.6.2, A2DP 1.3.2 Bluetooth frequency 2.4 GHz – 2.4835 GHz Bluetooth transmitted modulation GFSK, π/4-DQPSK, 8-DPSK Bluetooth transmitter power 6 dBm (E.I.R.P) Batteries ‎1 Lithium Ion batteries required. Charging time (hours from empty) 2 Maximum play time (hours) 57 Hands Free Call Yes Charging cable Yes Foldable Yes Built-in Microphone Yes JBL Pure Bass Sound Yes Multi-Point Connection Yes Voice Aware Yes Speed charge Yes Bluetooth Yes Package Weight 0.78 lb Box Dimensions (LxWxH) 10 x 8.1 x 2" Specifications Brand JBL Model name TUNE 520BT Colour Black Form factor Over Ear Connectivity technology Wireless Wireless communication technology Bluetooth Special feature Fast Charging Included components Cable Age range (description) Adult Material Plastic Connector ‎USB Type C Material Type ‎Plastic Size ‎One Size Hardware Platform ‎Tablet Driver size (mm) 33 Number of Microphones 1 Driver sensitivity at 1kHz/1mW (dB) 102 dB SPL@ 1kHz 1mW Dynamic frequency response range (Hz) 20 Hz – 20 kHz Impedance (ohms) 30 Bluetooth version 5.3 Bluetooth profiles HFP 1.7.2, AVRCP 1.6.2, A2DP 1.3.2 Bluetooth frequency 2.4 GHz – 2.4835 GHz Bluetooth transmitted modulation GFSK, π/4-DQPSK, 8-DPSK Bluetooth transmitter power 6 dBm (E.I.R.P) Batteries ‎1 Lithium Ion batteries required. Charging time (hours from empty) 2 Maximum play time (hours) 57 Hands Free Call Yes Charging cable Yes Foldable Yes Built-in Microphone Yes JBL Pure Bass Sound Yes Multi-Point Connection Yes Voice Aware Yes Speed charge Yes Bluetooth Yes Package Weight 0.78 lb Box Dimensions (LxWxH) 10 x 8.1 x 2" Frequently Asked Questions How much is shipping? Everything in our store is free standard shipping with the continental US When will you ship? Most orders will ship by the following business day. Once shipped you will be sent a tracking number so you track your order. Can I return something I purchased? Yes, we offer 30 day returns on all products purchased through our store. What payment method do you accept? We accept all major credit cards and PayPal.