Nouveau casque Bluetooth M10 de Zeyin avec affichage numérique rapport coût-performance écouteurs DM0102

Additional tax points for invoicing. Please consult our customer service at Shenzhen Kelian Electronics Co., Ltd. We have a production site of 1600 square meters, 4 formal production assembly lines, and independent research and development, design, and mold making. We welcome inquiries from customers such as JD.com to provide guidance and samples. Quality assurance: Mature and complete headphone production process, strict sound quality QC testing standards, achieving excellent quality of our headphones Inviting OEMs and ODMs from all over the world Product parameters Product Name: Wireless Two Ear Bluetooth Earphones Call duration: 3 Model: DM Charging duration: 1.5 Bluetooth version: V5.0 Microphone sensitivity: -42 ± 3dB Battery type: Polymer lithium battery Bluetooth protocol: Headset handfree A2SP AVRCP Transmission frequency: 2.4GHz (2402-2.4080GHz) Horn resistance: 32 Ω ± 15% Working distance: 10 meters Microphone sensitivity: -42 ± 3dB Earphone battery: 40 mAh Microphone impedance: 2.2k Ω Charging compartment battery: V3.7 300 mAh Regular color: black, Playback duration: 3 Net weight of headphones: 30g Product features Answer and make calls, play music, adjust volume, and switch up and down tracks.