IPX4 waterproof Detachable suction cup Integrated hook strap for extra portability Designed for both indoor and outdoor use BT speaker+FM radio+Digital clock+Timer Timer for shower / cooking / study / makeup Model: BTS135 Handfree Bluetooth Version: 5.0 Playtime: up to 20hrs Audio Output: 3W (RMS) Battery Capacity: 3.7V 2000mAh Bluetooth Range: up to 33ft / 10m Dimension: 93*93*39mm