JBL JBLLIVE500BTBKAM-Z LIVE 500BT Wireless Over-Ear Headphones, Black - Certified Refurbished Description With up to 30 hours of battery life, you can listen to your favorite audio all day with the white LIVE 500BT Wireless Over-Ear Headphones from JBL. Your favorite music is streamed via Bluetooth wireless technology through 50mm drivers that deliver JBL's Signature Sound. Thanks to multi-point technology, you can pair the 500BT over-ear headphones with up to two devices, such as a smartphone, tablet, or laptop, and easily switch between the two when you want. The over-ear headphones also feature a built-in microphone, letting you make hands-free calls via your smartphone, or interact with your mobile device's various digital assistant software programs, such as Google Assistant Alexa. Use them to send texts, make calls, answer questions, and more; all while your mobile device is safely and conveniently tucked away. Speaking of convenience, the LIVE 500BT headphones features a swivel and fold-flat design that helps to make them more portable and easier to take with you. Features 50mm Drivers Built-In Rechargeable Battery Up to 30 Hours of Playback Swiveling and Foldable Earcups Multi-Point Connection This technology lets you pair the LIVE 500BT headphones with two Bluetooth-compatible devices, so you can quickly and easily switch between the two. No more re-pairing or a separate set of headphones for the second device. For example, while watching a video on your tablet, you can switch to your phone to answer an incoming call, or while playing a mobile game on your phone, you can easily switch to a video conference call on your laptop. Ambient Aware TalkThru The LIVE 500BT wireless headphones make for an ideal solution to your on-the-go audio needs, but when walking around outside, it's important to be aware of your surroundings. With the touch of a button you can activate Ambient Aware, which lets more outside noise in so you can hear things like announcements more clearly. With TalkThru mode activated, the music volume is dropped, so you can have a quick conversation with others around you, without taking off your headphones. Comfortable Design With all-day battery life, JBL has fitted the LIVE 500BT headphones with a fabric headband and soft ear cushions, which are designed to help make them comfortable to wear for extended periods. Go Wired When You Need To If the 500BT's battery is running low, you can connect the detachable cable to use them as a traditional set of wired headphones. The cable features an in-line microphone and remote, so you retain the ability to control your audio, make hands-free calls, and interact with your digital assistant. Additional Features Tweak audio preferences with My JBL Headphones app Fully recharge in just 2 hours Get 2 hours of playback time with a quick 15-minute charge Specifications Headphone Driver Size 1.97" / 50mm Active Noise Cancellation None Design Over-Ear (Circumaural), Over-the-Head General Frequency Response 18 Hz to 20 kHz (Wireless) Sensitivity 108 dB at 1 kHz / 1 mW Impedance 32 Ohms Maximum Power Handling 15 mW Noise Attenuation None Controls/Microphone Location Cable, Earpiece (Side Unspecified) Foldable Yes Storage Capacity None Wireless Connectivity Bluetooth Profiles A2DP 1.3 AVRCP 1.5 HFP 1.6 Bluetooth 4.2 Frequency 2.4 GHz (2402 to 2480 MHz) Transmitter Power 15 mW Multipoint Support Yes Maximum Paired Devices 2 Bluetooth Transmitter Modulation /4 DQPSK, 8DPSK, GFSK NFC None Wired Connectivity Audio Connector to Source 1/8" / 3.5 mm Battery Battery Chemistry Lithium-Ion Polymer (LiPo) Capacity (mAh) 700 mAh Runtime 30 Hours (BT) Quick Charging Times 15 Minutes for 2 Hours Recharge Time 2 Hours DC Input Power 3.7 VDC Physical Weight 8.18oz / 232g Packaging Info Package Weight 1.42 lb Box Dimensions (LxWxH) 9 x 8.8 x 2.9"