The Green Lion Neck X Wireless Neckband is a perfect blend of technology and comfort for an unmatched audio experience. It has a 10mm driver and 20Hz-5KHz frequency, so it gives clear, sharp sound along with deep bass. The newest Bluetooth V5.4 ensures a strong connection with a transmission of 10 meters, and the dual-mic ENC ensures clear calls. With its ultra-lightweight ABS material design and IPX3 water-resistance standard, the neckband is perfect for use in active life. The neckband offers a maximum talk time of 21 hours and 20 hours of playtime with a battery of 200mAh, which gets fully charged within 1.2 hours via Type-C charging port. Ergonomic fit guarantees long listening hours and 96±3 dB sensitivity ensures an unforgettable listening experience. Whether it's for work or leisure, the Green Lion Neck X is a convenient friend to have during the day. Specification Frequency: 20Hz-5KHz±3 dB Transmission Range: 10m Speaker Driver: 10mm Impedance: 16?±15% Charging Time: 1.2Hrs Charging Port: Type-C Sensitivity: 96±3 dB Waterproof: IPX3 Battery: 200mAh Talk Time: 21Hrs Playtime: 20Hrs Bluetooth: V5.4 Material: ABS SKU: GNNECKXBK | GNNECKXBL | GNNECKXSL GTIN: 09904781908320 | 09904781908498 | 09904781908566 Features Dual-Mic ENC Comfortable To Wear