LOGITECH ULTIM EARS BOOM3 RED

CUSTOMIZABLE EQ: Select the best Sound for different occasions with 4 different presets and a customized tuner.; POWER: Rechargeable Lithium-Ion Battery for up to 15 hours of battery life** between Micro USB charges.; AUDIO: Maximum Sound Level: 90dBC.; Frequency Range: 90Hz – 20kHz.; Drivers: Two 2” drivers and two 2” x 4” Passive Radiators.; WIRELESS CAPABILITIES: Pair up to 8 Bluetooth enabled source devices – Connect up to two source devices at the same time.Mobile range of play is up to 45 m (150 ft).; COMPATIBILITY: For Audio Playback: Smartphones, tablets and other devices that support Bluetooth and Bluetooth Smart wireless audio profile