JBL Pure Bass sound JBL Wave Flex 2 earbuds feature 12mm dynamic drivers that deliver exciting JBL Pure Bass sound. Smart Ambient technology JBL Wave Flex 2 earbuds come with Smart Ambient technology. Ambient Aware adjusts how much of the outside world you want to hear, while TalkThru lets you talk with others—all without taking your earbuds out. 4 mics for crisp, clear calls Two mics on each earbud pick up and clearly transmit your voice while canceling out ambient noise. So you can make clear, crisp calls even when you're walking through a busy park on a breezy day. Features Water and dust resistant Your JBL Wave Flex 2 are IP54 water and dust resistant, so you can use them in rainy or windy conditions. Even the case is IPX2 resistant, so don't worry about bringing it along with you. JBL Headphones app Use the JBL Headphones app to select the EQ that fits your style—or customize your own. Voice Prompts in multiple languages give you useful information like whether your battery is running low. Or chill out and recharge in Relax Mode by choosing one of five peaceful sounds, like gentle ocean waves or a crackling wood fire. 40 total hours of playback time, plus speed charging Enjoy 10 hours of playtime, plus another three full charges (30 hours) in the charging case. Need to recharge even faster? 10 minutes on a USB type-C charging cable will give you another three hours of playtime. Multi-point connection Pair your JBL Wave Flex 2 earbuds with two Bluetooth® devices at the same time and then switch effortlessly from one to the other. So if you're watching a video on your tablet, you won't miss a call on your mobile phone. Seamless Bluetooth® pairing JBL Wave Flex 2 come enabled with both Fast Pair by Google and Swift Pair by Microsoft, so they immediately pair with both your Android devices and Microsoft computer with a single tap Specifications Life's too short for boring Upgrade your everyday Your vibe's here An everyday essential with elevated sound Amplify your world Quality sound just got easier—and more fun. JBL Wave Flex 2 earbuds feature exciting JBL Pure Bass Sound, plus Smart Ambient technology so you decide how much of the outside world you want to hear. Manage hands-free crisp, clear calls with just a tap of the earbuds. Use the JBL Headphones app to customize your sound and Voice Prompts language. Connect seamlessly with up to 8 Bluetooth® devices and switch effortlessly from one to another. Thanks to their shape, the Wave Flex 2 shine for their comfortable ergonomic design. And with 40 hours of playback time, they’re a great everyday sound companion. General Specifications Driver size 12 mm/ 0.47" Dynamic Driver Maximum operation temperature 45 °C Audio Specifications Power supply 5V 1A Frequency response 20 Hz - 20 kHz Impedance 16 ohm Sensitivity 98 dB SPL@1 kHz Maximum SPL 95 dB Microphone sensitivity -38 dBV/Pa@1 kHz Dimensions Earbud weight 4.12 g per pc (8.24 g combined) 0.009 lbs per pc (0.018 lbs combined) Charging case weight 35.68 g/ 0.0786 lbs Earbud dimensions 18.57*33.48*18.50 mm/ 0.009 lbs per pc (0.018 lbs combined) Charging case dimensions 54.88*49.30*25.85 mm/ 0.0776 lbs Control and Connection Specifications Bluetooth version 5.3 Bluetooth profile version A2DP V1.4, AVRCP V1.6.2, HFP V1.8 Bluetooth transmitter frequency range 2.4 GHz – 2.4835 GHz Bluetooth transmitter power <9 dBm (EIRP) Bluetooth transmitter modulation GFSK, π/4-DQPSK, 8DPSK Battery Earbud battery type Lithium-ion battery (45 mAh/ 3.85 V) Charging case battery type Lithium-ion battery ( 550 mAh/ 3.8 V) Charging time <2 hrs from empty Music playtime with BT on Up to 10 hrs Talk time Up to 6 hrs What's in The Box? 1 x JBL Wave Flex 2 headphones 1 x Type-C USB charging cable 1 x Charging case 1 x product QSG/ Safety Sheet (S / i)