Cuffie wireless retrattili, auricolari stereo V5.0 con microfono a cancellazione di rumore, clip per auricolari, comode cuffie vivavoce.

Bullet Points: 1.Retractable Wireless Headset: Keep your wireless earbuds safe and warm with a retractable cord and collar clip. Control your cord with a button—no more kinks or breaks. A knot-free solution that's easy to carry, so you can enjoy clear sound wherever you goes. 2.Efficient Charging Innovation: Get a quick Battery boost with our retractable wireless headphones. Fully charge in less than 20 mins and 50% in just 10, 90% faster than competitors. Enjoy fast efficient charging. 3.Electronic Display: Get your daily dose of music and communication with just 20-minute charging time. Enjoy 33 hours of music or 50 hours of talk time, plus 300 days of standby. Stay informed with the LED battery display. Meet your outdoors needs effortlessly. 4.High-Quality Music and Clear Calls: Our retractable wireless headset lets you enjoy hands-free calling with crystal-clear sound quality. The advanced noise-canceling mic allows you to step away from your phone, while voice alerts keep you connected anytime and anywhere. 5.Multi uses: Stay connected to multiple devices such as smartphones, tablets, PCs and more with ease. Perfect for busy car drivers and businessmen, experience crystal clear audio for your multiple applications. ​ Specification: Product name: Retractable Business Lavalier Earphone Distance: 10-20 meters Listening time: about 30 hours Headphone battery: 250MAH Wireless frequency: 2.4GHZ Support protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 Transmission distance: 10 meters Charging voltage/current: 5V/1A Charging time: about 2 hours Standby time: 200 hours Speaker impedance: φ10MM 32&; Microphone sensitivity: -42Db Working temperature: -10-50℃ Headphone weight: 20G List retractable wireless headset headphone * 1 Charging cable * 1 Instruction manual * 1