Marvel Headphones, Bluetooth

Bonus detachable cord!. 28 hours of use. Volume limited to protect hearing. Wirelessly stream audio from a smartphone. tablet. or computer. Built-in rechargeable battery provides up to 28 hours of continuous playtime. Volume reduced to ensure safe listening levels. Bonus detachable 3.5mm audio cable connects to any device with a headphone jack. Built-in microphone for talking to friends and family. Adjustable headband and padded ear cushions for custom fit. Foldable for portability. Foldable for portability. Optional cord included. Specs: Bluetooth Chipset: airoha AB1522S 4.1. BT Distance: 28M - Battery Capacity: 350mAh. Playing time: 28 hours at volume 80dB - Recharge Time: 90 minutes. Impedance: 32 ohm at 1 khz - Maximum Power Input: 100mW. Driver unit: 40mm - Frequency response: 20Hz - 20Khz - Sensitivity: 85-90db. This product supports Bluetooth (1.1, 1.2, 2.0 and 2.1 + EDR) wireless technology enabled devices with A2DP AVRCP, and secure simple pairing profiles. Contents: Bluetooth Headphones, 3.5mm Audio cable, USB charging cable. Product specifications and colors may vary from photo. New material only. RoHS: Complies with the European regulations for certain hazardous substances. Please recycle. Manufactured in China.