Feel the bass. Avoid wiring. These wireless headphones from JBL give you the full opportunity for immersion, no matter if you are listening to music or answering a call. Now it’s over to find your headphones crumpled in the bag - here you get no wires, but just crystal clear sound and a noticeable bass! With a battery life of up to 21 hours and a comfortable fit, these headphones are a sure hit. With Dual Connect you can use one earplug at a time or both depending on the situation - it does not get smarter than that. Features: 21 hours battery life Dual Connect Comfortable fit Hands-free calling and access to Voice Assistant Included: JBL TUNE 115TWS 3 sizes of earplugs (S, M, L) Type-C USB charger cable Charger box 1 x warranty / warning (W /!) 1 x QSG / safety sheet (B / w) Specifications: Driver size: 5.8 mm Dynamic driver Frequency response: 20Hz - 20kHz Sensitivity: 96dB SPL @ 1kHz 1mW Maximum SPL: 96dB Microphone sensitivity: -38dBV / Pa @ 1kHz Impedance: 14 ohms Bluetooth transmitted power: <12dBm Bluetooth transmitted modulation: GFSK, Ï€ / 4 DQPSK, 8DPSK Bluetooth frequency: 2,402 GHz - 2,480 GHz Bluetooth profile version: A2DP 1.3, AVRCP 1.5, HFP V1.7 Bluetooth version: 5.0 Headset battery type: Lithium-ion battery (85 mAh / 3.7 V DC) Charging case battery type: Lithium-ion battery (850 mAh / 3.7 V DC) Power supply: 5V 1.0A Charging time (headset and charging case): <2 hours from empty Music playing time with BT on: 5 hours Weight: 73 g