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 High for Travel Outdoor 1 Boost in Compact Size 2 Various 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 Power with Clear Vocals Unique and Craftsmanship Metal Craftsmanship with Unique Design Delicate and Durable Pocket-Friendly Small to Carry Travel-Ready IPX7 Waterproof Free to Enjoy Your Tunes in the Shower STEREO PAIRING Pair 2 Nimo to Spread Better Stereo Sound Take Your Tunes on the Go Keep Your Music on the Go with 12 Hours Playtime Hands-Free Calling Built-in Microphone Lets You Enjoy Hands-Free Calls 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