Tronsmart Nimo Speaker Mini Portable Speaker with IPX7 Waterproof, Stereo Pairing, Hands-Free Calling, for Travel, OutdoorTronsmart Nimo Speaker Mini Portable Speaker with IPX7 Waterproof Stereo Pairing Loud for Travel Outdoor 1 Boost in Compact Size 2 Different Color Options 3 Metal Exquisite Craftsmanship 4 Ultra Portable with Lanyard 5 Hands-Free Calling and Stereo Pairing Small and Powerful Customized Drivers Deliver Higher Output with Clear Vocals Unique and Crafty Metal Craftsmanship with Unique Design Delicate and Durable Pocket-Friendly Small to Carry Travel Ready IPX7 Waterproof Free to Enjoy Your Songs in the Shower STEREO PAIRING Pair 2 Nimo to Blast Better Stereo Sound Take Your Songs on the Go Keep Your Music on the Go with 12 Hours Playtime Hands-Free Calling Built-in Microphone Lets You Enjoy Hands-Free Calling Specifications Model: Nimo Bluetooth Version: 53 Bluetooth Profile: A2DP/AVRCP/HFP/HSP Audio Codec: SBC Bluetooth Range: up to 15m/49ft (open area) IP Rating: IPX7 Output Power: 5W Input Power: 5V/500mA via Type-C port Frequency Range: 100Hz-18KHz Battery: 37V/700mAh Playtime (varies by volume level and audio content): up to 12 hours (at 50% volume) Charging Time: 253 hours Weight: 110g What's in the box: 1 x Tronsmart Nimo Portable Mini Speaker, 1 x Type-C charging cable, 1 x Non-detachable lanyard, 1 x User Manual