HLLGT Neckband Bluetooth 5.1 Wireless Headphone

Product Description: 1. Headphones with graphene diaphragm can make the sound heard more smoothly and clearly 2. You can use the memory card to play music. The magnetic design makes it easy to store and avoid the loss 3.20H long-lasting battery life, no need to worry about running out of power when listening to songs, automatically link memory function when power on 4. Comfortable and painless to wear for a long time Lightweight material design reduces the weight of the headset by 30% Product parameters Bluetooths version: 5.1+EDR Sensitivity: 101.7dB+/3dB Signal-to-noise ratio: 95dB Battery capacity: 280mAH Product weight: product about 50g Headphone charging current: 5V=1A Playing time: about 20 hours Product size: 20.5cm x 11.5cm x 2cm/8.07" x 4.53" x 0.79" (approx.) Ear wire length: 200mm Product List 1*Neckband Bluetooths Headset 1*Power cord 1*Instruction