Écouteurs Bluetooth S650 de qualité imbattable, avec batterie longue durée et fixation au cou, insertion possible dans une carte pour la course et le sport

[Packing Information] Weight (including packaging): 122g Packaging size: 21 * 14 * 2.7cm product list 1. Host 2 Chinese and English instruction manual 3 USB charging cable 4. Neutral packaging in both Chinese and English Bluetooth version: 5.0 Sound effect: 9D stereo Play duration: 60 hours Function introduction: A2DP protocol, TF card music playback Standby time: 1900 hours MP3 playback, prompt language switching between Chinese and English, simultaneous connection to 2 phones, Siri voice wake-up Battery capacity: 800mAh [Technical Parameters] Bluetooth protocol: A2DP/AVRCP/SMP/HFP Acceptance distance: 10-15 meters Speaker impedance: 32 ohms 15% Speaker sensitivity: 103 3dBat 1 KHZ Frequency response range: 20Hz~20KHZ Charging voltage: 5V Charging current: 200MA-300MA Working voltage: 3.7V Working current: 8MA~20MA Warranty Period 1 year Default Yunda Communication Feng Due to different shipping batches, there may be slight differences in the outer packaging of certain products. We will provide users with aesthetically pleasing and high-quality outer packaging without affecting product quality. The SKU image in some products may display multiple products of the same style, for reference only. If the specifications are not clearly stated, the quantity of goods in that specification is 1 piece. [Product Testing]: Before shipping and packaging, our company will also conduct individual tests to ensure that you receive the goods without any quality issues. If there are quality issues, please communicate with me in a timely manner so that the problem can be resolved and unpleasant incidents can be avoided. Thank you for choosing our product!