tws w21 wireless bluetooth 5.0 headset support call tws earphones new design waterproof sport headphone for smartphones

earcups type: semi-open headphone pads material: silicone bluetooth version: 5.0 codecs: none waterproof yes total harmonic distortion: 1% features: with microphone; none impedance range: up to 32 connectors: none style: in-ear vocalism principle: dynamic active noise-cancellation: no communication: wireless support app: no function: for internet bar function: for mobile phone number of drivers: 2 plug type we have a wide range of products, complete models, good prices, and sufficient inventory. we will ship the goods as soon as possible after you place the order. dear friends, when paying for the order, please check whether the address and contact information are correct , please leave your full name to receive the package..syi