Power at your fingertips, our neckband Bluetooth earphones are designed for busy lives at home, work or on the go. Supplied with earhooks and 3 sizes of earbuds, each earpiece can be tailored to the unique shape of your ear. The lightweight, splash proof design delivers heavyweight sound, with intuitive inline controls for volume, track selection and hands-free phone calls and an inbuilt vibration motor that notifies you of an incoming call when the earbuds aren't in use. Up to 12 hours playback is available from a single charge, with the added security of a 15 minute fast charge function providing 6.5 hours use when you unexpectedly run out of juice. Bluetooth v5.0 provides speedy wireless connectivity within a 10m range and the provided soft carry pouch can be used to keep your earphones safe and secure when not in use.Frequency response: 20Hz-20kHzvbCrLfSensitivity: 95dBvbCrLfImpedance: 32 OhmsvbCrLfIP rating: IPX4vbCrLfPower : battery: Lithium ion 140mAhvbCrLfCharge time: 45 mins (15 mins fast charge)vbCrLfBattery life: Up to 12 hours (6.5 hours fast charge)vbCrLfBluetooth version: V5.0vbCrLfBluetooth range: up to 10m (in clear line of sight)vbCrLfWeight: 28g