Feature 1 Multifunctional, can be used as lights, mobile phone holders, power banks and horn. 130 decibel wire controlled speaker, 5 sound modes, long press for 3 seconds to switch sound effects. 2 Highlight 550 LM dual lamp head, brightness up to 550 LM to illuminate the road ahead, with USB charging cable. The lamp holder can be rotated, and the lamp holder can be adjusted up and down about 45°. 3 There are 3 lighting modes, click to switch the lighting mode, highlight (550 LM ) medium brightness (200 LM ) burst flash (550 LM ). Suitable for most of the bicycle/electric bike/motorcycle and other round tube handlebar. 4 4pcs power indicator lights show power. Shock absorption and anti skid, no damage to your phone, high density sponge pad at the bottom and anti skid silicone embedded on both sides IPX4 life waterproof, ABS sealed shell prevents rainwater leakage. 5 Adjustable quick-release bracket, the bracket is equipped with detachable anti-skid pads for 3-stage gear adjustment, suitable for most handle diameters. The base can be rotated, and the base can be rotated by ±15° to better adjust the direction of the lights. The base buckle is stable and will not fall off. After installing the base, press down the buckle to prevent loosening. Item Type: Multifunction Bicycle Light Material: ABS Engineering Plastic + Silica Gel Gasket + Sponge Pad Lamp Chips: 2 x lamp beads Battery Type: 2 x 18650 (Included) Brightness: 550 LM/200 LM Mode: High light, medium light, burst flash Battery: 4000mAh Battery Model: Lithium battery Charging: Micro USB charging Speaker: 130 decibels, 5 sounds mode Application: Suitable for Mobile phone with width 5.8-9cm/2.3-3.5in Package List 1 x Bicycle Light 1 x Manual 1 x USB Charging Cable 1 x Bicycle Light Holder 1 x Accessory